为您找到与鼻部标准美学相关的共39个结果:
一般英语学习者,在全面提高英语的前提下,要提高听、说能力,应首先注意以下三点:
1.注意区分和模仿正确的语音、语调
在英语里有不少读音相近,但意思却截然不同的词汇,象cure[kjue](医愈)和 kill[kill](杀死),menu(菜单)和manure(肥料)等。设想如果有一个医生想说:"I'll cure you."(我要治好你的病。)却因发音不好,说成:"I'll kill you."(我要杀死你。)那病人会吓成什么样子。又比如,有人对你说:" I am thirty.My wife is thirty,too."而你听到的却是:" I am dirty. My wife is dirty,too."你一定会莫名其妙。实际上,所差之外就是一个音素。因此,我们从一开始就要注意区分和模仿正确的语音,语调。在这个基础上提高听、说,才能收到良好效果。
2.创造一定的听、说环境
听、说是一种语言交流,没有一个外语环境或一定的听、说条件,只靠单枪匹马很难收效。当然,现代科学为我们提供了录音机这一工具,我们可以把课文,对话和中外成品磁带录制下来反复听和模仿。还可以把自己的口头作文和复述录下来,仔细审听,发现问题,及时纠正。但是,在自然条件下,听与说是不能分的。一个人听的过程实际是另一个人说的过程。如果有条件的话,最好能把自学的伙伴组织起来,定期开展会话活动,或利用社会上,公园中提供的"外语之角"等条件,既练了说,又练了听,在实际的语言环境中练习,才能取得长足的进步。
3.要有不怕听错,说错,不断苦练的精神
练习听、说的学习者,特别是成年人,往往必听错、说错,不敢主支张口练习。然而,语言是一种习惯,没有反复的操练和实践难以产生熟练的技巧。会话重在达意,只要达到交流思想的目的,这种听、说实践就应该说是基本成功的。出了错,注意总结经验,自学改正就是了。
二.听力训练的四个阶段
⑴入门阶段 这个阶段适合初学者。在学完字母及一些简单句型和词汇后即可开始。一般可以进行三各听力练习:
1)句型练习: 做这项练习时,可以把句型、词汇及语法三项结合起来。这方面有不少国内外出版的句型练习教科书及录音带,如:《英语九百句》(English 900)和《情景对话》(Situational Dialogues),邓炎昌编的《英语会话五十题》和邓荣成编译的《实用英语问答》等。这些课本编排比较科学,由浅入深,循序渐进,照顾到生活常用词汇和句型,耐用做到了关键句型反复出现。配合课本录制的磁带质量也很好,几乎都包括速度较慢的跟读和重复练习。
2)浅显易懂的英语小故事:听小故事也是这一阶段听力训练的重要步骤。如《罗宾汉的故事》(GRIMM'S TALES),<<伊索寓言>>(AESOP'SFABLES)等。<<新概念英语>>第一二册等的也可采用。听故事旨在听懂大意,锻炼把前后内容连贯起来的能力,而不在于模仿语音,语调和熟记句型。听故事还可以扩大词汇,把学到的英语书面符号同声音结合起来。
3)中外录制的教科书课文:中外出版的一些英语教科书如:许国璋主编的《英语》统编教材一到四册,周珊凤,张祥保主编的《大学英语》,英国朗曼公司出版的《基础英语》(ESSENTIAL ENGLISH)及美国麦希尔公司出版的>今日英语>(ENGLISH FOR TODAY)等,内容丰富,课文有相当的长度和难度。如果学习时配合听课文录音,或先听后读或学了之后再听,都可以达到从声音入手反复熟悉课文的目的,既学了课文,又练了听力。最后,在入门阶段,尽管掌握的英语不多,还是应该努力把听和说结合起来,积极利用学过的内容,组织自学伙伴,开展对话。有条件的话,争取能听听中外籍人士用英语介绍生活,学习或英,美情况的小报告,即使兴能勉强听懂一部分也应尝试。
⑵初级阶段 这一阶段仍属基础学习阶段。主要任务是扩大,加深和巩固入门阶段所学成果,可以从以下几方面进行训练习:
1)继续听句型练习和小故事:这一阶段要注意通过时间较长,难度较大,语言现象较复杂的听力材料来继续解决语音,词汇和语法这三方面的问题。如果仍沿用入门阶段的句型练习材料,就要加大单位时间听力材料的数量,并争取在回答或重复时提高自己的准确度。总之,应在材料难度及反应速度方面下功夫。在听小故事方面可听《如此故事》(WHAT A STORY)一类的成品录音带。其特点是在录制故事时,有意识地安排了好几个人插话,提问,以中断某人叙述的方式来进行一些意见交流,这也可算作情景对话,得同简单的问答式对话大不相同,它更接近真实生活,也更自然。
2)选听各种报告录音,扩大听的内容:为了扩大词汇,并逐步适应不同口音和年龄的讲话,这一阶段可选听一些浅易的英美历史、地理、风俗人情的报告。英美人士访华印象的讲话也是很好的内容。这些讲话一般以半小时左右为宜,既增长知识又提高听力。
3)开始收听北京电台对外广播:电台的英语涉及政治、经济、文化等各方面内容,语言比较规范,播音员语音、语调又是楷模,因此听英语广播是学习英语的极好途径。北京电台(Radil Beijing)收听方便,每日内容更新,多数是有关我国各方面发展的消息。由于学习者熟悉这些内容,这就降低了听力难度,所以对听力刚刚入门的人来说是比较合适的。在这一阶段, 听的重点应是北京电台对外的新闻广播、国际形势分析及一些文化评论。听时要摸索新闻广播的一般规律,注意培养听新闻的一些基本技巧和方法。如果一开始感到困难,可以采取以下两个辅助办法,即在听广播之前阅读《北京周报》(BEIJING REVIEW),《中国日报》(CHINA DAILY)或《新华电讯稿》(XIN-HUA NEWS BULLETIN)有关文章。这样,在内容和词汇有一定准备的情况下,听英语广播就会容易得多。另外,可以把新闻和评论录制下来,反复精听,逐句推敲。这也是抽调听力的一个委好训练方法。在这一阶段,仍应进行听说配合的群练,做口头作文,沁报告等等,并开展力扫能及的讨论。
⑶中级阶段 本阶段应从机械训练转向实践,从课本进入社会。解决听外台的能力作国这一阶段的一项主要任务。可进行以下训练。
1)听美国之音(VOA)慢速广播(VOA SPECIAL ENGLISH PROGRAM)或英国广播公司(BBC)英语广播(BBC ENGLISH BY RADIO):这两个节目速度较慢,在词汇选择上也有适当控制,因此作为训练听外台的起步练习是很合适的。开始时可根据自己熟悉的工英国或美国音来选听 BBC或VOA,然后逐步向另一台过渡。在听这两种特殊节目毫无困难之后,就可转向正常速度的英美电台广播。电台广播和报刊杂志的内容是紧密联系在一起的。因此,在进行这一训练的同时,应阅读一些英文报刊杂志。
2)视听结合,训练听懂电影,戏剧的能力:看外语电影可以纳入这一阶段的训练。听电影,戏剧中的台词,实际是相当难的,作为起步,可以先看一些翻译成英语的国产电影,如《闪闪的红星》甚至幻灯片《高玉宝》等。然后选看熟悉的影片,如《列宁在一九一八》,《战争下和平》等。最后可尝试听一些语言规范,内容健康的原版英美电影,如《冰海沉船》《百万英磅》《简.爱》《孤星血泪》《雾都孤儿》《红菱艳》以及中央电视台的《星期日英语》(ENGLISH ON SUNDAY)节目中经常播放的一些英美电影对话,不能要求每句话,每个字都听懂,应以是否正确把握住了故事情节和重要的细节为标准。
3)继续前两阶段的某些听力训练:听力训练是长期的,经常的任务因此,各人可以根据自己的薄弱环节,在向新内容发展的同时,坚持进行某些前两阶段采用过的听力练习形式,但难度和词汇量工有所加强,要多听英。美文化和政治经济方面的报告,以及访华学者就当今大家感兴趣和国际问题,青年问题等所作的一小时左右的报告。
[4]高级阶段 本阶段完成后,英语学习者应达到或者接近英美人的听力水平,并能应付各种情况。
1)在听外台方面,要训练听正常速度节目。要从重点听新闻,转向多听专栏评论和报道。
2)在可能条件下,争取听使用英语的学术讨论会,语言学,文学,历史,政治经济等问题的讲座和科普报告,并积极参加报告会后的讨论活动。
二. 3)如有兴趣或需要,可进一步训练听戏剧台词和诗歌朗诵,如莎士比亚,萧伯纳,奥尼尔等名家的戏剧,或英美诗歌名篇。
4)练习听用英语讲授的课程,学习英语是为了掌握一种语言工具,从而更好地精通自己的专业,因此,在这一听力阶段应达到听懂用英语讲授的专业课程或报告,要练习完全用英语进行思维,把耳听,思考,理解和笔录完美地用英语统一起来,如果客观上没有这种听课条件, 大量阅读专业资料,听有关专业风空的英语报告,并积极开展英语讨论,与同行交换看法等,也或以在很大程度上弥补这方面的不足。
三.听力训练的几个具体问题
(1)泛听和精听相结合
在听力训练中,既要能准确无误地听出某些重要的数据,年代,人名,地名及事实,又要兼顾把握大意的训练,这弱就必须所精听与泛听结合起来,交替练习,即把精听和泛听分成各处独立的练习,听时穿插安排,也可把一个故事或报告他成精泛段落,有些部分精听,其余泛听。在精听时,要首先熟悉听力材料中的生词,对有此难句可以反复听:而泛听则首先着眼于量大,只求掌握大意,不必了解每个细节,精听遍数不限,直到完全听懂为止,泛听的遍数由由材料难度和自己的程度来决定,得一般不要超过三遍否则就失去了泛听的意义,泛听时,不宜中间打断,要一气呵成, 精听则可在句子之间或困难之处停下机器,倒带重听。兴泛不精,会养成似是而非,不求甚解的习惯,反之,则见树不见林,抓不住大意。所以这两种训练哪一种也不应偏废。
(2)听力训练应培养的能力和从上下文猜字的能力
1) 在听力训练过程中,往往会碰到听不清或听不懂的情况,原因很多,有进是由于说话人发音不清楚或录音效果不好,有时是因为出现了生词或内容陌生的缘故,这就要靠抓字音及从上下文猜字的能力来解决问题。比如:我们初次听《薄雪花》(EDE LWEISS)这首歌时,可能对其中两处的歌产生疑问,一是"You look happy to meet me"。有人会认为是"You look happy to me ,to me "。但若仔细多听,就会发现 meet me 连读时[t]音部分失去爆破,并不和me 相连。另一难点是"Blossom of smow,may you bloom and grow"这句歌词中,blossom 一字由于节拍关系,唱得委快,[l]音听不清楚,再加上和后面的of连读,给听者造成很大困难,这时需要运用猜字的能力,从上下文进行分析,这是一首关于白色花的歌曲,后面的动词中又有bloom(开放)这个词,只有blossom(花朵)这个词才比较合适,况且只有blossom这个词包含和[sm]这两个从录音带上可以辨认的声音,这样问题迎刃而解,所以,碰到类似情况时,首先要记住能听清的声音,然后根据上,下文的内容和语法关系提供的线索来进行推测,如果可能的话,还可以根据字音查一下字典,这一能力的培养是听力训练中很关键的一个环节,对独立工作,摆脱困难至关重要。
2) 排除杂音和各种干扰的能力:为国培养这一能力,要多听新闻广播,听那些看不见说话人口形的录音报告,要逐渐适应人们说话进加上"well","eh"之类填充语(hesitation fillers)的习惯,以及有时说了一半忽然转念另起一句话的现象,还要努力做到能把录音不清楚不一词半语,或者讲演者降低声音,很快一带而过的词句正确地补充出来。
3) 要有适应英国音,美国音及一些主要方言的能力:听力训练可以采取从一种音入手,再逐步过渡支另一种音的办法。为了更快的掌握听好英国音和美国音的能力,学习者可以主动归纳或对比两种英语在发音,语调上的差别,以便更好地渡过这一关。如美国人在or,er等组合字母后面还要加上[r]音:doctor[ ](英音),[ ](美音):把[a:]音发为[ ]音:can't[ka:nt](英音), [k nt](美音)等发音特点。对英格兰北部,苏格兰地区有此特殊的发音和用字,以及美国黑人英语,澳大利亚,新西兰英语中的一些变异现象,如无特殊需要,一般可以不练,不学。但适当有一些了解,听一,两个样品录音也有好处。
(3)听力训练的时间安排
听力训练需要思想高度集中,故时间安排以每天精神最佳时候为宜。而且,时间不宜过长,第 要连续听一小时以上。听力又是习惯成自然的技巧训练,所以每天安排一段时间。不能三天打鱼,两天晒网,更不能听一段时间后,就一扔半年,一年。
(4)听力测试方法
听力测试有各种形式,可根据本人程度及训练目的,找一些合适的附,有测试题的听力教材做些练习,考核水平。
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有的人觉得学了十年的英语,仍然一无所获,既听不懂别人说什么,别人也听不懂自己讲的英语。这很可能是你的英语学习方法出了问题,很多人都有多年学习英语的经历,但是运用起来却是步履维艰,不得不从头再来。那么,最好的英语学习方法是什么,哪些英语学习方法才是最好的呢?下面为大家分享一下。
发音是学英语的基础环节,没有好的发音就没有一口标准流利的美式英语,今天小编和大家分享这些具有实用价值的方法和窍门:
1.Listen to yourself.
如果你听不到自己的发音问题,要纠正就很难了。试着把你的话录下来并和英语为母语人士的对比一下。
2. Slow down!
很多英语学习者常说语速太快容易养成他们的坏习惯。由于太快而模糊不清是口语考试的大忌。所以我们要accuracy 然后才是fluency,每天操练一些基本语言以单音节开始,然后单词,把几个词连在一起,组成句子。
3. Picture it.
闭上你的眼睛并在说出口之前想一想如何发这个音。想象出口型和脸部动作。这个可以配合看电影来做,留意Hollywood的明星是怎么样一字一句的说出那些令人神魂颠倒的话语的.
4. Get physical!
发音是个形体动作。要学会嘴巴的发声方法和移动肌肉的方式。每天集中训练几个音。你发this, thank, they,和little, wool等单词困难吗?试试发‘th’,将你的舌头放在齿间(不要咬住)并从口中吐气。感受气流从你的舌间吹过。
5. Watch yourself.
站在镜子前查看当你发某些固定音时的嘴型,唇型和舌头的位置。和你看到的native speaker的发音对比!平时还可以把自己的发音模样录成video,仔细观察比较。想学习更多英语知识,请关注口袋英语aikoudaiyy
6. Copy the experts.
绝对没有取代从专家(英语母语人士处)学习发音的方式。因此仔细听!
7. Practice makes perfect.
发音的问题迟迟不能解决就是因为我们害怕犯错。如:第一次见面,在饭店点菜,询问方向,可以在家练习,然后你自己表演出对话内容。别害羞!
8. Find a language buddy.
从其他人处获得反馈是非常重要的。找一个对提高英语水平同样感兴趣的朋友。试着更换录音资料这样你就可以互相听对方的发音。记住录完要重新听听,找出错误和闪光点啊。
9. Be poetic.
好的发音不仅是掌握单独的音节。还是对intonation (声音的升降调)和 stress (对单词中一些音节和句子中的一些单词更大声更清晰的发音)的理解。大声念一些诗歌,演讲,歌曲,集中练习单词的重音和音调。
10. Sing a song!
学习一些英语流行歌曲的歌词并跟着唱。唱歌帮助你放松并能让这些词说出来,同时帮助改进你的语音和语调。
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英语专业四级考试是为中国高等院校英语专业的学生在其大学英语学习的第二年下学期(约每年5月中下旬),举行的全国性的英语水平测试,目的是检查高校学生对基础阶段英语教学大纲掌握的情况。从1990年开始,考试已进行了6年,每年都有数以万计的英语专业学生参加,且呈逐年上升趋势,对英语教学的影响也越来越大。考试的内容包括写作(一篇命题作文和一篇便条),听写,听力,完形填空,语法与词汇、阅读(阅读理解和速读)。
听力
理解
完型
填空
语法
词汇
阅读
理解
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对于英语专业的学生来说,在大学英语学习期间,除了要在中学学习的基础上提高自身的英语水平及英语应用能力之外,还应该通过国家设置的英语专业四级和八级的考试,从而衡量自己的英语水平,专业英语八级考试也被认为是考核英语专业学习者能力的试金石.但近年来,全国英语专业八级考试的过级率不断下降,让广大学者、教师不由得反思到底是哪里出了问题.本文通过分析英语专业八级考试的题型与备考策略,期望对英语专业的学生有所启发,使同学们能更了解英语专业八级考试,并能准确而高效的备考.
(a)要求学生能运用语法、修辞、结构等语言知识识别短文内的语病并提出改正的方法。
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全国英语专业四级考试已经成为衡量英语专业学生学习技能的标准之一,新版英语专业四级考试大纲对听力考试部分有的新的要求,本文主要对听力考试中短文理解部分的题型及应试技巧进行了探讨。
英语专四听写评分标准
1. 听写共分15小节;每节1分。
2. 每节最多扣1分。
3. 重复错误,仅扣一次。
4. 错误共分两类:小错误(minormistakes)和大错误(majormistakes)。
A. 小错误:
1) 单词拼写错一到二个字母。例:inconvenient—unconvenient,inconvient;originally--origionally,originally;knives———nives。
2) 标点符号错误:一when When;To solve this problem,the—To solve this problem。
3) 冠词,单复数错误:shells—shell;withasolution—withthesolution。
4) 小错误扣分标准:小错误在一节中出现一次,留作总计;出现两次,扣0.5分;出现三次,扣0.5分后留一小错做总计;出现四次(以上),扣1分。
5) 未扣分小错误的扣分标准:累计2---4个:扣0.5分。累计5---8个:扣1分。
B. 大错误:漏写、加词、造词、换词(冠词作小错计),大移位,时态错误,原文一个词变两个词。每个错误扣0.5分。
例:arestillpaid—isstillpaid,stillpaid,stillpay;wereused—weused;coinswere—coinwas;began—begun;goods—good;cloth—ciof,cloths;salt—soit;paid—payed;throughout—allthrough,throughof;accepted——anacception;aspayment——forpayment;forgoods——togoods;they——these,there.
5.一些特例的扣分标准:
1) 下列情况不扣分:inthepast—inthepast;“now”后加逗号。
2) 下列情况扣分:throughout--throughout(小错误);apieceof—piecesof(两个小错,扣0.5分)
6. 总分为0.5分时,以1分计算:其余总分中如含分数的,分数舍去,留整数。如:12.5分一12分,7.5分---7分。空白卷—律打0分。
最后,希望考生把握好细节,尽量少丢分,顺利通过英语专四考试。
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总觉得我们中国人用英语写出来的东西和人家老外写的相比,有天壤之别。无论你的英语水平有多高,感觉有多好,其“大作”咀嚼起来始终不是原汁原味,不是正宗食品,他们的“月亮”的确比我们圆,所以总觉得我们是在用CHINGLISH写作,常常羞于见人。下面是读文网小编整理的英语写作中的句法标准,欢迎大家阅读!
先看第一段文字:
“Fifteen years teaching experienced qualified full time tutor - Available for all levels Chinese subjects.”
这段文字虽然措词凌乱,但是并不难理解讲的是什么;真的是“ 只有其意,不见其形”或是“有意无形”。稍微分析一下,不难断定问题所在。
㈠ 构词法不对:fifteen years→fifteen years of /15-year ;all levels→all levels of. ㈡ 名词形式不对:experienced→ experience. ㈢ 标点符号被忽略:full time→full-time.
修改后的句子合乎语法,但全句并不自然,要改写如下:
A qualified full-time tutor with 15 years of teaching experience is available for all levels of Chinese.
再看第二段文字:
“All materials are good quality with latest design and guaranteed.”
这段话的错误如下:
㈠ 形容词词组不对:good quality→of good quality. ㈡ 定冠词被忽略:with latest design→with the latest design. ㈢被动语态中的接系动词不在场:guaranteed→are guaranteed.
修正后的句子既正确又易解,但可以使它从“对”变“好”,如下:
All materials are of good quality, with the latest design and under permanent guarantee.
这里三个形容词词组,一个接一个,紧紧扣住,符合对句法( parallelism)中每个成分平衡的原理。
最后,看看这段话:
“To sell or to market such a high value asset professionally, you should entrust the job to a true professional in order to optimise your property's full potential to secure the highest price and the shortest period of time.”
上面三个加线之处,都有语病。
㈠ high value→highly valued/ highly valuable. ㈡ your property'http://www.4ewriting.com/s full potential→the full potential of your property. ㈢ and→at。
此外,㈡前面有“optimise”(尽量提高)这字,“potential ”里面的“full”便多余了,应该除去。同样的道理,下面这句里的 “widely”和“in more than 100 countries”,也互相抵触,要除去其中一个:
“...prepare students for the Royal School of Music Examination which is widely recognised in more than 100 countries.”
改正之后,可以是“which is widely recognised”或“which is recognised in more than 100 countries”.
此外,这句的形容词分句“which...”是非限定的( non-restrictive adjective clause),其前面要加逗号,把分句和先行词分开,才符合用法:
...prepare students for the Royal School of Music Examination, which is widely recognised
or
...prepare students for the Royal School of Music Examination, which is recognised in more than 100 countries.
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摘要:据陕西广播电视台报道,近日网上流传的“女婿标准”震惊了众多网友。你知道怎么用英语表达吗?
The son-in-law standards widely spread on the Internet these days have terrified many Internet users, Shaanxi Broadcast and TV Station reported.
The harsh standards include owning an apartment of at least 100 square meters, a car worth 200,000 yuan ($33,000) or more and at least a 100,000-yuan deposit under the bride's name.
Other requirements are a grand wedding, imported baby formula, at least one trip per year and celebrating festivals with the parents-in-law.
据陕西广播电视台报道,近日网上流传的“女婿标准”震惊了众多网友。
该标准极为苛刻,要求准女婿有100平米以上的房子、20万以上的车子以及10万元以上女方名下的存款。
此外,“女婿标准”还要求婚礼要盛大,婴儿奶粉要进口,每年至少一次旅游,逢年过节要回娘家过。
文中的son-in-law standards就是“女婿标准”的意思。相对应的,daughter-in-law指“儿媳”,parents-in-law指“岳父岳母;公公婆婆”,而丈母娘的说法则是“mother-in-law”。
第三段中的“a grand wedding”即“盛大的婚礼”。与婚礼相关的词语有:wedding ceremony 结婚典礼;Wedding MC(master of ceremonies) 婚礼司仪;officiator 主婚人;Wedding Limousine 婚车;groomsman(或the best man) 伴郎;bridesmaid 伴娘等。
此外,imported baby formula即“进口婴儿配方奶粉”;与之对应的是breast milk 母乳。
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以下是小编整理的哲理类英语美文欣赏:评价人的恰当标准:善心, 希望对你有所启发。
When I was growing up, I was embarrassed to beseen with my father. He was severely crippled andvery short, and when we would walk together, hishand on my arm for balance, people would stare. Iwould inwardly squirm at the unwanted attention. Ifhe ever noticed or was bothered, he never let on.
It was difficult to coordinate our steps -- hishalting, mine impatient -- and because of that, wedidn't say much as we went along. But as we startedout, he always said, "You set the pace. I will try toadjust to you. "
Our usual walk was to or from the subway, which was how he got to work. He went to worksick, and despite nasty weather. He almost never missed a day, and would make it to the officeeven if others could not. A matter of pride.
When snow or ice was on the ground, it was impossible for him to walk, even with help. Atsuch times my sisters or I would pull him through the streets of Brooklyn, NY, on a child'ssleigh to the subway entrance. Once there, he would cling to the handrail until he reached thelower steps that the warmer tunnel air kept ice-free. In Manhattan the subway station was thebasement of his office building, and he would not have to go outside again until we met him inBrooklyn' on his way home.
When I think of it now, I marvel at how much courage it must have taken for a grown man tosubject himself to such indignity and stress. And at how he did it -- without bitterness orcomplaint .
He never talked about himself as an object of pity, nor did he show any envy of the morefortunate or able. What he looked for in others was a "good heart", and if he found one, theowner was good enough for him.
Now that I am older, I believe that is a proper standard by which to judge people, even though Istill don' t know precisely what a "good heart" is. But I know the times I don't have one myself.
Unable to engage in many activities, my father still tried to participate in some way. When alocal sandlot baseball team found itself |without a manager, he kept it going. He was aknowledgeable baseball fan and often took me to Ebbets Field to see the Brooklyn Dodgersplay. He liked to go to dances and parties, where he could have a good time just sitting andwatching.
On one memorable occasion a fight broke out at a beach party, with everyone punching andshoving. He wasn't content to sit and watch, but he couldn't stand unaided on the soft sand. Infrustration he began to shout, "I' ll fight anyone who will tit down with me!"
Nobody did. But the next day people kidded him by saying it was the first time any fighter wasurged to take a dive even before the bout began.
I now know he participated in some things vicariously through me, his only son. When I playedball (poorly), he "played" too. When I joined the Navy he "joined" too. And when I came homeon leave, he saw to it that " I visited his office. Introducing me, he was really saying, "This is myson, but it is also me, and I could have done this, too, if things had been different." Thosewords were never said aloud.
He has been gone many years now, but I think of him often. I wonder if he sensed myreluctance to be seen with him during our walks. If he did, I am sorry I never told him howsorry I was, how unworthy I was, how I regretted it. I think of him when I complain abouttrifles, when I am envious of another's good fortune, when I don't have a "good heart".
At such times I put my hand on his arm to regain my balance, and say, "You set the pace, I willtry to adjust to you."
在我成长的过程中,我一直羞于让别人看见的和父亲在一起。我的父亲身材矮小,腿上有严重的残疾。当我们一起走路时,他总是挽着我以保持身体平衡,这时总招来一些异样的目光,令我无地自容。可是如果他注意到了这些,不管他内心多么痛苦,也从不表现出来。
走路时,我们很难相互协调起来----他的步子慢慢腾腾,我的步子焦燥不安。所以一路上我们交谈得很少。但是每次出行前,他总是说,"你走你的,我想法儿跟上你"。
我们常常往返于从家到他上班乘坐的地铁站的那段路上。他有病也要上班,哪怕天气恶劣。他几乎从未误过一天工,就是在别人不能去的情况下,他也要设法去上班。实在值得骄傲!
每当冰封大地,雪花飘飘的时候,若是没有帮助,他简直举步维艰。每当此时,我或我的姐妹们就用儿童雪橇把他拉过纽约布鲁克林区的街道,一直送他到地铁的入口处。一到那儿,他便手抓扶手一直走到底下的台阶时才放开手,因为那里通道的空气暖和些,地面上没有结冰。到了曼哈顿,地铁站就在他办公楼的地下一层,在我们在布鲁克林接他回家之前他无须再走出楼来。
如今每当我想起这些,我惊叹一个成年男子要经受信这种侮辱和压力得需要多么大的勇气啊!叹服他竟然能够做到这一点,不带任何痛苦,没有丝毫抱怨。
他从不说自己可怜,也从不嫉妒别人的幸运和能力。他所期望的是人家"善良的心",当他得到时,人家真的对他很好。
如今我已经长大成人,我明白了"善良的心"是评价人的恰当的标准,尽管我仍不很清楚它的确切涵义,但是我却知道我有缺乏善心的时候。
虽然父亲不能参加许多活动,但他仍然没法以某种方式参与进来。当一个地方棒球队发现缺少一个领队时,他便作了领队。因为他是个棒球迷,有丰富的棒球知识,他过去常带我地埃比茨棒球场观看布鲁克林的鬼精灵队的比赛。他喜欢参加舞会和晚会,乐意坐着看。
记得有一次的海边晚会上,有人打架,动了拳头,推推搡搡。他不甘于坐在那里当观众,但又无法在松软的沙滩上自己站起来。于是,失望之下,他吼了起来:"谁想坐下和我打?"
没有人响应。但是第二天,人们都取笑他说比赛还没开始,拳击手就被劝认输,这还是头一次看见。
现在我知道一些事情他是通过我--他唯一的儿子来做的。当我打球时(尽管我打得很差),他也在"打球"。当我参加海军时,他也"参加"。当时我回家休息时,他一定要让我去他的办公室,在介绍我时,他真真切切地说,"这是我儿子,但也是我自己,假如事情不是这样的话,我也会去参军的?父亲离开我们已经很多年了,但是我时常想起他。我不知道他是否意识到我曾经不愿意让人看到和他走在一起的心理。假如他知道这一切,我现在感到很遗憾,因为我从没告诉过他我是多么愧疚、多么不孝、多么悔恨。每当我为一些琐事而抱怨时,为别人的好运而妒忌时,为我自己缺乏"善心"时,我就会想起我的父亲。
此时,我会挽着他的胳膊保持身体平衡,并且说,"你走你的,我想法儿跟上你。"
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想知道标准的英语应聘信怎么写吗? 读文网小编整理了英文求职信范文,希望对大家的求职有所帮助。
april 13,20XX
p.o. box 36
biit university
beijing,china 100000
dear sir/madam:
now and then corporations send out feelers for just the right type of creative person. this person must fit very specific criteria. usually, after all is said and done, the corporation wants a business person who can manage, create and communicate. a seasoned professional who's been around for a while.
if you've been looking for this rare combination of business savvy and design expertise, my background might interest you:
ten years of working experience. solid background in the management of creative up-and-comers.
know new technologies that show instant profit, such as cad/cam.
this is but a brief summary of my abilities. and there is much, much more to share.i feel i have strong marketable skills in which you would be interested. please contact me if you would like to hear and see more.
with many thanks,
huang yan
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想知道大学生的英语应聘信怎么写吗?读文网小编整理了英文求职信范文,希望对大家的求职有所帮助。
Dear leaders:
Thank you for your concern about the use of the valuable time of my cover letter!
My name is CNrencai, XX, and this year's 22-year-old, height180cm, X years in XXXX on XXX graduated from the University, his loyalty to honest and reliable; will be day-to-day operation of computers, has won numerous awards in the student and to participate actively in hospital the activities of school organizations, have a good life style and high sense of discipline in mind, the awareness of higher consciousness, to the implementation of good order, a strong sense of teamwork, hard work style, not afraid of hardship, and the courage first to. the work of a sense of responsibility strong, and ready to help others on the tasks assigned by the superiors motivated and good at learning on their own hard work, a certain degree of grass-roots management experience.
I have learned is the professional management of industrial and commercial enterprises, but I do not rigidly adhere to professional constraints, of all walks of life are full of confidence and love. Of course, in the spare time, I like to do is to read the Exercise and Sport . I like to see some kind of inspirational books, like her spare time for basketball, soccer and other ball games! I think that there is no good physical work conditions can not be backed up, there is no more flexible mind can not be!
Optional wood and good bird habitat, allow disabled persons to friends. An opportunity to co-operate, to me is a good start, for you are a wise choice. I was a Chollima, as you are pursuing the ability and insight to such a re - The horses only. sincerely hope you can give me a play to realize the value of life, in order to effect social development opportunities. language can only be moved by the people of time, the ability to prove I can. I believe that under your wise leadership, in my diligence efforts, tomorrow I will become a member of your organization best. My credo is: Opportunities favor only those people who are fully prepared.
I wish you every success for the cause。
Waiting for your good news!
Sincerely,
Salute!
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想知道判断绅士的标准是什么吗?下面一起来看看判断绅士的7条标准吧。
1.Hence it is, that it is almost a definition of a gentleman, to say he is one who never inflicts pain. This description is both refined and, as far as it goes, accurate. He is mainly occupied in merely removing theobstacles which hinder the free and unembarrassed action of those about him; and he concurs with their movements rather than takes the initiative himself.
绅士,他是一个从不使别人遭受痛苦的人。这几乎就是为一个有修养的人所下的定义。这样描述是精妙的,而且,就其本身而言,也是准确的。他主要是致力于为他周围的人们排除妨碍他们进行自由而拘谨的活动时面临的障碍;他附和他们的行动,而不是自己采取主动。
2.His benefits may be considered as parallel to what are called comforts or conveniences in arrangements of a personal nature: like an easy chair or a good fire, which do their part in dispelling cold and fatigue, though nature provides both means of rest and animal heat without them.
他这样做的好处可以看作类似于所谓人们相互之间作安排时带来的舒适和便利:就象一把安乐椅或者一个温暖的炉火,它们能驱散寒冷和疲倦,虽然,没有它们,大自然也能提供休息和增加体温的方法。
3.He is never mean or little in his disputes, never takes unfair advantage, never mistakes personalities or sharp sayings for arguments or insinuates evil which he dare not say out.
与人有了争端,他从不刻薄,也不小气,从不乘人之危,从不为了争辩而误解别人的人格或说尖利的言辞,或者暗示那些他不敢说出口的邪恶的事情。
4.From a long-sighted prudence, he observes the maxim of the ancient sage, that we should ever conduct ourselves towards our enemy as if he were one day to be our friend.
他从有远见的审慎的观点出发,遵守古代圣贤的座右铭:我们应该这样对待我们的敌人,好像他终有一天会成为我们的朋友。
5.He has too much good sense to be affronted at insults, he is too well employed to remember injuries, and too engaged to bear malice. He is patient, tolerant, and resigned, on philosophical principles; he submits to pain, because it is inevitable, to the death of family members, because it is irreparable, and to death, because it is his destiny.
他很明智,不因受辱而感到被冒犯,他忙于自己的事情,顾不上对自己所受到的伤害耿耿于怀,也懒于为此而心怀恶意。在哲学的原则上,他表现出耐心、宽容和顺从;他正视痛苦,因为痛苦不可避免,他忍受丧亲之痛,因为失去的亲人不可挽回,他屈从于死亡,因为死亡是他最终的归宿。
6.He may be right or wrong in his opinion, but he is too clear-headed to be unjust; he is as simple as he is forcible, and as brief as he is decisive. Now here shall we find greater candor, consideration, indulgence: he throws himself into the minds of his opponents, he accounts for their mistakes. He knows the weakness of human reason as well as its strength, its province and its limits.
他的想法也许对也许错,但他头脑清晰,不会不公正;他率直而有说服力,简单而有果断性。在这里我们找到了更强大的直率性、考虑性、放纵性:他站在对手的立场上考虑问题,他为他的错误去解释。他知道人类理性的弱点、优势、领域及局限。
7.f he engages in controversy of any kind, his disciplined intellect preserves him from the blundering discourtesy of better, though less educated minds; who, like blunt weapons, tear and hack instead of cutting clean, who mistake the point in argument, waste their strength on trifles, misconceive their adversary, and leave the question more involved than they find it.
假如他与人进行争论,他那训练有素的智力使他避免犯那些智力更强然而却缺乏教育的人们常犯的粗鲁和失礼,那些人如同粗钝的武器,乱劈乱砍,而不是公正地争论,他们曲解论点,在枝节问题上浪费精力,他们误解对手,把问题弄得比原来更复杂。
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标准化是指在经济、技术、科学和管理等社会实践中,对重复性的事物和概念,通过制订、发布和实施标准达到统一,以获得最佳秩序和社会效益。那么你知道标准化用英语怎么说吗?下面来学习一下吧。
通常用半导体技术制作的、具有标准化尺寸的一种微型电子器件,能实现一种或多种电路功能。
A tiny electronic device with standardized dimensions(usually fabricated using semiconductor techniques) capable of performing one or more functions in a circuit.
修饰或说明计算机系统部件的标准化的程度,模块化设计允许部件组合和出现很多种类的兼容部件。
Pertaining to a degree of standardization of computer system components to allow for combinations and large variety of compatible units.
标准化的生活成就了标准化的,没有个人意志的人们。
Standardized life creates standardized citizens with no wills of their own.
使质量控制的经验规范化,形成标准化作业。
Standardize the quality control experience and form a standardized operation.
在标准化的过程中没有革新的空间。
There is no room for innovation in standards.
多数军事政策都需要标准化。
Most military policy needs normalization.
很清楚,要想使研讨方法标准化是不可能的。
Standardization of counseling techniques is obviously impossible.
大部分汽车零件是由标准化生产厂制造的。
Most car components are manufactured by standardization manufactory.
我方包装是标准化的,已为外国客户认可。
Our packing is standardized in a manner which is approved by foreign clients.
为了充分利用已有的MOM基础设施,同时又不失标准化,J2EE平台提供了JMS。
To take advantage of the already existing infrastructure of MOMs without sacrificing standardization, the J2EE platform offers JMS.
许多公司都反对标准化和商品化。
A lot of companies fight standardization and commoditization.
然而,XML-SEC是W3C的成果,它的目的在于使实现基于SOAP的Web服务中的安全性的方法标准化。
However, XML-SEC is a W3C effort aimed at standardizing the ways of implementing security in SOAP-based Web services.
它随后需要收集和处理数据,对数据进行过滤并规范化为一种标准格式,然后管理通信并把事件提交给服务器。
It then needs to collect and process the data, filtering it and normalizing it into a standard format, then manage the communications and submit the event to the server.
这种标准化允许采用最佳实践的开发并缩短雇用新开发人员时的适应期。
This standardization allows for the development of best practices and reduces the ramp-up time when a new developer is hired.
SOA RA的标准化提供一个行业认可的、供应商中立的起点来实现客户创建SOA解决方案。
The standardization of the SOA RA gives an industry endorsed, vendor neutral starting point for customers creating SOA solutions.
对于这两个模式,我们执行了一些测试来测量与Name和Address标准化和可疑副本处理关联的开销。
For both modes, tests were conducted to measure the overhead associated with Name and Address standardization and suspect duplicate processing.
而对于服务公开,进而对于SIMM级别4,至关重要的正是这些特性的标准化。
It is the standardization of these qualities that is the key to service exposition, and therefore, to SIMM level4.
有些标准化规则非常简单,不需要进行大量的工作,如将混合使用大小写的数据转换为大写数据。
Some of the standardization rules are straightforward and do not require significant effort, such as converting mixed-character data into upper case.
这是因为大部分组织机构都在按照工业时代的做法运营,而这些做法的目的是尽量提高标准化水平和自上而下的管理力度。
That 's because a majority of organizations operate according to industrial-era practices that were designed to maximize standardization and top-down authority.
这意味着您要密切关注标准化所提供的真正价值,然后考虑合理方案。
It does mean that you have to keep a close eye on the real value provided by standardization and consider reasonable alternatives.
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标准原意为目的,也就是标靶。其后由于标靶本身的特性,衍生出一个“如何与其他事物区别的规则”的意思。那么你知道标准用英语怎么说吗?下面来学习一下吧。
criterion
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商务函电是指在日常的商务往来中用以传递信息、处理商务事宜以及联络和沟通关系的信函、电讯文书。常用的商务信函主要有商洽函、询问函、答复函、请求函、告知函和联系函等。
商务信函一般由:信头、编号和日期、封内地址、称呼、事由、信文、结尾敬语、签署、附件、附言等组成。
信头(Heading):指发信人的姓名(单位名称)、地址和日期,一般写在信纸的右上角。一般公函或商业信函的信纸上都印有单位或公司的名称、地址、电话号码等,因此就只需在信头下面的右边写上写信日期就可以了。
地址:英文地址的写法与中文完全不同,地址的名称按从小到大的顺序:第一行写门牌号码和街名;第二行写县、市、省、州、邮编、国名;然后再写日期。标点符号一般在每一行的末尾都不用,但在每一行的之间,该用的还要用,例如在写日期的时候。 日期的写法,如1997年7月30日,英文为:July 30,1997(最为普遍); July 30th,1997;30th July,1997等。1997不可写成97,以免引起歧义。 信内地址:在一般的社交信中,信内收信人的地址通常省略,但是在公务信函中不能。将收信人的姓名、单位、地址等写在信头日期下方的左角上,要求与对信头的要求一样,不必再写日期。
称呼(Salutation)是写信人对收信人的称呼用语。位置在信内地址下方一、二行的地方,要求从该行的顶格写起,在称呼后面一般用逗号(英国式),也可以用冒号(美国式)。写给公务上的信函用Dear Madam,Dear Sir或Gentleman(Gentlemen)不用专指某个人。注意:Dear纯属公务上往来的客气形式。Gentlemen总是以复数形式出现,前不加Dear,是Dear Sir的复数形式(有时也可Dear Sirs)。写给收信人的信,也可用头衔、职位、职称、学位等再加姓氏或姓氏和名字。例如:Dear Prof. Tim Scales, Dear Dr.John Smith。
事由:在公务信函中,通常在称呼与正文之间,有Re:或Subject:(事由)字样。一般在信纸的中间,也可与“称呼”对齐。还应在底下加横线、加粗等,以引起读信人的注意,使收信人便于在读信之前就可了解信中的主要内容。 正文(Body of the Letter):位置在下面称呼语隔一行,是信的核心部分。因此要求正文层次分明、简单易懂。
结束语:恭维性的,位置在正文下面一到两行的地方,从正文的开头偏右的位置,句末用逗号,比较常用的是truely yours(yours truely)或者faithfully yours、sincerely yours。
签名:此项是必需的,结束语后的一到两行后面,也是在信纸的中间偏右的位置开始写,同时,在结束语的正下方签名下面要用机器打出签名,以便于对方识别。还需要把写信人的头衔、职位等打在名字下面。
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小编为大家介绍了先进加密标准是什么,希望对你有帮助哦!
For the past three years,the National Institute of Standards and Technology (NIST) has been working to develop a new encryption standard to keep government information secure.The organization is in the final stages of an open process of selecting one or more algorithms,or data-scrambling formulas,for the new Advanced Encryption Standard (AES) and plans to make adecision by late summer or early fall.The standard is slated to go into effect next year.
AES is intended to be a stronger,more efficient successor to Triple Data Encryption Standard (3DES),which replaced the aging DES,which was cracked in less than three days in July 1998.
“Until we have the AES,3DES will still offer protection for years to come.So there is no need to immediately switch over,”says Edward Roback, acting chief of the computer security division at NIST and chairman of the AES selection committee.“What AES will offer is a more efficient algorithm.It will be a federal standard,but it will be widely implemented in the IT community.”
According to Roback,efficiency of the proposed algorithms is measured by how fast they can encrypt and decrypt information,how fast they can present an encryption key and how much information they can encrypt.
The AES review committee is also looking at how much space the algorithm takes up on a chip and how much memoryitrequires.Roback says the selection of a more efficient AES will also result in cost savings and better use of resources.
“DES was designed for hardware implementations,and we are now living in a world of much more efficient software,and we have learned an awful lot about the design of algorithms,”says Roback.“When you start multiplying this with the billions of implementations done daily,the saving on overhead on the networks will be enormous.”
The process of selecting the algorithm for AES has been notable for its openness and transparency.This is a marked departure from the government's past inclination toward secrecy in discussing encryption standards,which led to the public cracking of DES after critics questioned the government's assertion that the standard was still secure.
NIST kicked off the selection process in September 1997.Conferences were held in August 1998 and March 1999 ;cryptographers from around the world discussed the algorithm candidates and helped narrow the list to 15 and then to five finalists:IBM's MARS;RSA Laboratories* RC6 ;Joan Daemen and Vincent Rijmen's Rijndael;Ross Andersen,Eli Baham and Lars Knudsen's Serpent;and Counterpane Labs* Twofish.
While most evaluators of the algorithms want to avoid complexity by selecting one to serve as a standard,there's a minority that wants to select more than one.
在过去三年中,(美国)国家标准与技术局(NIST)已在研究开发一种新的加密标准,以确保政府的信息安全。该组织目前正处于为新的先进加 密标准(AES)选择一个或几个算法或数据打乱公式的开放过程的最后阶段,并计划在夏末或秋初作出决定。此标准内定明年实施。
AES预定为比三层数据加密标准(3DES)更强、更高效的后续标准,3DES替代了老化的DES加密标准,DES在1998年7月在不到三天的时间内就 被破译了。
NIST计算机安全部的代理主管兼AES选择委员会主席Edward Roback说 :“在我们拥有AES之前,3DES还将在今后几年提供保护。所以没有必要马上转换。AES所提供的是一种更有效的算法。它将是一项联邦标准,但它将在IT界 广泛实施。”
据Roback称,提议中的算法的效率是通过对信息加密和解密有多快、给出加密密钥有多快以及能对多少信息加密等几个方面进行测量的。
AES评价委员会也要看算法占据芯片上多少空间和需要多少内存。Roback说,选择一个更高效的AES也会带来成本的节省和资源的更好利用。
Roback说:“DES是为硬件实现而设计的,而我们现在处于软件更高效的世界,我们对算法的设计有极多的了解。当我们开始大规模使用此算法,每天实现几十亿次的加密时,(算法带来的)网络开销的节省将是巨大的。”
为AES选择算法的过程是以其公开性和透明度称著。这标志着政府从以往讨论加密标准时倾向于保密的做法一刀两断,它导致了政府在断言DES 标准仍是安全时被公开破译。
NIST在1997年9月开始这个选择过程。1998年8月和 1999年3月召开了会议,来自全世界的密码专家讨论了候选的算法,帮助把算法缩小到15 个,最后到了5个:IBM的MARS算法,RSA实验室的RC6算法、Joan Daemen和Vincent Rijmen两人的Rijndael算法、Eli Baham和Lars Knudsen两人的Serpent算法以及Counterpane 实验室的Twofish算法。
大多数算法鉴定者都选择一个作标准以避免复杂性,但也有一小部分人要选择多个算法。
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无线局域网是无线电波作为数据传送的媒介,传送距离一般只有几十米。接下来小编为大家整理了无线局域网的新标准,希望对你有帮助哦!
With portable computers and wireless LANs, users can enjoy greater productivity while away from their desks, whether they are in conference rooms, public areas or remote offices.
Until recently, however, wireless LANs were too slow for most enterprise applications.based on the IEEE 802.11 standdrd, they ran at 1M to 2M bit/sec.
Now a new high-rate extension to the standard, 802.11b, lets wireless networks support data rates to 11M bit/sec.
Ratified in 1997, the original 802.11 standardunited the wireless industury by defining a low-level protocol architecture that worked with conventional upper-layer enterprise protocol stacks. Also, 802.11 maintained compatibility with the three mostpopular radio transmission types: direct sequence spread spectrum, frequency-hopping spread spectrum, and infrared.
Essentially, this new architecture added intelligence at the medium access control(MAC)layer 2 and at the physical(PHY)layer 1, fosteing cooperation between the two layers in performing the critical tasks involved with initiating and maintaining wireless communi-cations.
For instance, to ensure reliability of the wireless link, MAC and PHY work together to determine if a clear path exists before they start a transmission.
During transmission, they employ special collision-avoidance and arrival-acknowledgment techniques that are not required in wired ethernet LANs.
In september 1999, the IEEE approved a new designation, known as 802.11.intended to retain the error-correction,security, powermanagement and other advantages of the original, a key ingredient-a thchnique for increasing bandwidth to 11M bit/sec.
Called complementary code keying(CCK)the technique works only in conjunction with the DSSS technology sprcified in the original standard . it does net work with frequency-hopping or infrared transmissions.
What CCK does is apply sophisticated mathematical formulas to the DSSS codes, apermitting the code to represent a greater volume of informitter is now able to send multiple bits of information with each DSSS code, enough to make possible the 11M bit /sec in the original standard .
The 802.11b standard benefits users by delivering wireless ethernet speeds of 11M bit/sec that can reliably support everyday business applications, e-mail, internet and server network access.
With support from the new wireless ethernet from the new wireless ethernet compatibility alliance, founded by 3com, lucent, nokia and several other companies in the wireless LAN business, the new standard will also promise certified interoperability across multivendor platforms.
Finally, the 802.11b standard serves as a clamoring for a simplified wireless LAN landscpape.
Vendors can now focus on a single, high-speed standard, and users can cut through the clutter of wireless options by fovusing on a standard that delivers multibvendor interoperability and the performance to meet their application needs.
有了便携式和无线局域网,用户在离开其办公桌的时候,不管是在会议室、公共区域还是在远处办公室,都能享有更高的生产效率。
然而,时至今日,无线局域网对多数企业应用来说还是太慢。依据IEEE802.11标准,他们运行速度为1兆至2兆位/秒。
现在对此标准的一个新的更高速扩展,能让无线网支持高达11兆位/秒的数据速率。
最初的802.11标准是在1997年提出的,通过定义能与常规的上层企业协议组一起工作的低级协议体系结构,把无线行业团结起来了。802.11也保持了与三种最流行的无线电传输方式(直接顺序扩频、跳频扩频和红外线)的兼容性。
本质上,这种新的体系结构在介质接入控制(MAC)层(第二层)和物理层(第一层)增加了智能,建立这两层之间在执行及开始和保持无线通讯的关键任务时的协作关系。
例如:为确保无线连接的可靠性,MAC层和物理层一起工作,以确定在他们开始传输之前是否有一条清晰的路径。
在传输过程中,他们采用有线以太网不需要的、特殊的避免碰撞和到达应答技术。
1999年9月,IEEE批准了称作802.11B的新名称,作为802.11的高速扩展。此新的802.11B标准在保留原标准的纠错、安全、电源管理和其他优点的情况下,增加了一项关键内容,即把带宽增加到11兆位/秒的技术。
此项技术叫做互补码键控(CCK),他只与原标准中规定的直接顺序扩频(DSSS)技术一起工作,不能用跳频或红外线传输方式工作。
CCK所做的工作是把复杂的数学公式应用于DSSS代码,以允许该代码在每个时钟周期表示更多的信息。现在发射机能在每个DSSS代码中发送多个信息位,足以实现每秒11兆位/秒的数据传输率,而不是原标准的2兆位/秒。
802.11B 标准给出11兆位/秒的无线以太网速度,给用户带来好处,速度能可靠地支持日常的业务应用、电子邮件、因特网和服务器网络的接入。
由3COM、LUCENT、NOKIA和其他几家有无线局域网业务的公司组成的“无线以太网兼容性联盟”支持新的标准,此标准也有望实现跨多厂商与用户团结起来的作用。
现在,厂商能专注在单一的高速标准上,用户也能以通过关注给出厂商互用性和性能。以满足他们应用要求的标准上,解决了从一大堆无线网中作选择的难题。
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标准差又常称均方差,能反映一个数据集的离散程度,也是数学考试经常出现的考点。那么你知道标准差用英语怎么说吗?下面跟着读文网小编一起来学习一下吧。
1. The positive square root of the variance is called the standard deviation.
方差的正的平方根叫做标准差.
2. The statistical description includes percentages , means , standard deviations, frequency, and Pearson's r.
统计描述用百分数、均数 、 标准差 、 频数 、 Pearson相关系数.
3. Standard deviation tells you if the estimate includes a pad.
标准差告诉你估算的不确定性有多高.
4. Corresponding to the same probabilities, the ranges of uniform R. V. are calculated.
再以相同之机率算出标准差亦为一之均匀分布随机变数对应之变数范围.
5. This spread of possible outcomes is usually measured by standard deviation.
这一未来结果的展步通常以标准差衡量.
6. These standard deviations are also calculated from monthly data.
18这些标准差也是从月度数据计算得出.
7. The usual measure of this spread is the standard deviation or variance.
这种展步的通常衡量是标准差或者方差.
8. Calculate the variance and standard deviation of this rate of return.
计算这一回报率的方差和标准差.
9. The actual deviation is positive because we don't know what will happen.
实际的标准差是正数因为我们不知道会发生什么.
10. Relative standard deviation of this method is below 3 %.
方法的相对标准差低于3%.
11. The standard deviation of a well - diversified portfolio is proportional to its beta.
一个分散充分的投资组合的标准差与其beta是成比例的.
12. A . A . Standard deviation tells you if the duration is realistic.
标准差告诉你历时是否是现实的.
13. Volatility is the annual standard deviation of some assets return.
某项资产的波动率指的是该资产收益的年标准差.
14. Standard deviations , 95 % confidence interals, and 90 % prediction interals also calculated.
并计算标准差 、 95%可信区间和90%的预测区间.
15. What does the standard deviation have to do with risk?
标准差和风险有何关系?
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