2004年[秋]成都电子科技大学线性系统理论考博真题答案考博试题答案

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哈工大考博英语真题及答案

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2 按可控规范型分解取M 的前两列，并加1与其线性无关列构成1 1 401200 1P -?? ??=-?????? ，求得120331 1066 00 1P ?? ????? ?=-????????? ? 进行变换[] 1 1 20831112,0,2 2 26000 1 A PAP B PB c cP --? ? ?? ???? ????=-====???? ??????????? ? 所以系统不可简约实现为[]08112022x x u y x ?????=+???????????=? 3. 1 2(1)(1)2(1)()()(4)(2)(1) (4)(2) s s s G s c sI A B s s s s s --+-=-= = -++-+ 4. det()(4)(2)(1)sI A s s s -=-++，系统有一极点4，位于复平面的右部，故不是渐近稳定。 1 2(1)()()(4)(2) s G s c sI A B s s --=-= -+，极点为4，-2，存在位于右半平面的极点，故系统不是BIBO 稳定。系统发散，不是李氏稳定。 5. 可以。令11 228,12T k k k k A Bk k +???? =+=??? ??? ?? 则特征方程[]2 112()det ()(2)28f s sI A Bk s k s k k =-+=-++-- 期望特征方程* 2 ()(2)(3)56f s s s s s =++=++

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电子科技大学 UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA 博士学位论文 DOCTORAL DISSERTATION （电子科技大学图标）论文题目中继增强蜂窝网络中无线资源分配技术的研究学科专业通信与信息系统学号200620101010 作者姓名XXX 指导教师毛玉明教授

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对外经济贸易大学考博英语真题答案 Section I Use of English 1、【答案】B concluded 【解析】题干中，一系列的研究已经_____，事实上，正常体重的人的患病风险要高于超重的人。根据句义，后面的部分实际上是研究的结论，因此concluded符合题意，其他选项denied(否认)与意义相反，doubled(翻倍)与题意较远，ensured(确保)不符合题意，因为研究不能确保后面的事实，只能得出后面的事实作为结论。所以正确答案为B。 2、【答案】A protective 【解析】题干中，对于某些健康情况，超重事实上是有_____。根据前文研究的结论，超重能减少罹患疾病的风险，说明超重具有一定的保护作用。Dangerous和文章意思相反，sufficient表示充足，troublesome表示有麻烦，不符合题意，所以正确答案为A。（PS:The way to contact yumingkaobo TEL:si ling ling-liu liu ba-liu jiu qi ba QQ:772678537) 3、【答案】C likewise 【解析】第三句话中，较重的女人患缺钙的比例低于较瘦的女人。_____，在老年人中，一定程度上超重……。需要填入的是和前半句表示顺接的词语。A选项instead表示逆接的句意关系，B选项however也表示逆接，D 选项therefore表示因此，只有C选项likewise意为同样地;也，而且。因此正确答案为C。 4、【答案】A indicator 【解析】本句话中，_____，一定程度上超重，经常是健康的_____。A 选项，表示指示器，指标。B选项objective表示客观;C选项origin表示来源，D选项example表示例子。根据前面的文章内容，已经明确指出超重代表了健康，因此超重是健康的指标。因此正确答案为A。

2004年成都电子科技大学博士研究生入学英语翻译试题和答案

原文： The price we pay for this salutary change is, no doubt, great.We assemble thousands of operative in the factory, and in the mine, of whom the employer can we know little or nothing, and to whom he is little better than a myth. All intercourse between them is at an end. Rigid castes are formed, and, as usual, mutual ignorance breeds mutual distrust. Each case is without sympathy with the other, and ready to credit anything disparaging in regard to it. Under the law of competition, the employer of thousands is forced into the strictest economies, among which the rates paid to labor figure prominently, and often there is friction between the employer and the employed, between capital and labor, between rich and poor. Human society loses homogeneity. The price which society pays for the law of competition, like the price it pays for cheap comforts and luxuries, is also great, but the advantages of this law are greater still than its cost., for it is to this law that we owe our wonderful material development, which brings improved conditions in its train. But, whether the law be benign or not, we must say of it, as we say of the change in the conditions of men to which we have referred. It is here, we can not evade it; of the effort of any new substitutes for it proposed we can not be sure; and while file law may be somtimes hard for the individual, it is best for the race, because it insures the survival of the fittest in every department. We accept and welcome, therefore, as conditions to which we must accommodate ourselves, great inequality of environment; the concentration of business, industrial and commerical, in the hands of a few; and the law of competition between these, as being not only benefical to the future progress of the race. Having accepted these, it follows that there must be great scope for the expertise of special ability in the merchant and in the manufacturer who has to conduct affairs upon great scale. That this talent for organization and management is rare among men is proved by the fact that it invariably secures enormous regards for its possessors, no matter where or under what laws or condition. 译文：我们对这个有益的改变所付出的代价，毫无疑问，是巨大的。我们安装了成千上外台机器在工厂中和矿井中。我们对雇主知之甚少，他甚至仅仅是个神话。他们之间并没有交流。严格等级制度形成了，通常，相互的忽视孕育了彼此的不信任。每一个事件没有互相的同情，并随时将任何的蔑视与其联系起来。在竞争的原则下，数以千计的雇主被逼进入严格的经济体中，在其中付给劳工的比例很明显。通常，在雇员和雇主、资本和劳动力、穷人和富人间有摩擦。人类的世界失去了平衡。人类为了竞争性原则所付出的代价，就像他们为了便宜的舒适和奢华所付出的代价一样，也是巨大的。但是这个原则的利大于弊。因为正是因为这样的原则，导致了我们杰出的物质发展，而这些改善了我们的生活条件。但是，无论这个法则是正面的还是负面的，我们得承认，就像承认我们前面提到过的人类生活条件的改变。它就在这里，我们无法逃避。为此所做出的任何新的替代品的努力我们不能够确定。虽然法律文件有时候对自然人非常苛刻，但是它对整个民族确实最好的，因为它确保了在任何地方都能够适者生存。因此，我们接受并欢迎，就像我们必须要使自己适应环境的不平等那样，对于商业、工业和农业那样，集中在少数人的手中，竞争性原则渗透其中，对未来民族的发展进步有好处。接受这些东西，这意味着对于掌握特别知识的商家和进行大规模生产的厂家必须有一个宽广的视角。对于具有组织和管理才能的人是少数的这一事实可以被下述情况证明：对于持有人来说，不论在什么条件或者哪种法则下，稳定确保了量大。

吉林大学考博英语真题解析

吉林大学考博英语真题解析 Section I Listening Comprehension（20points） Part A（5points） 1.highlands； 2.20； https://www.360docs.net/doc/a74866440.html,d； 4.November； 5.22. Part B（5points） 6.A（technology）forecaster； https://www.360docs.net/doc/a74866440.html,ernment agencies； 8.（a）meaningful（exercise）； 9.open to change； 10.Trust and cooperation. Part C（10points） 11.D12.B13.C14.D15.A16.C17.B18.A19.A 20.C Section II Use of English（10points） 21.C22.D23.A24.D25.A26.B27.C28.D29.A 30.B31.A32.C33.D34.B35.A36.B37.B38.D39.A 40.C Section III Reading Comprehension（50points） Part A（40points） 41.C42.A43.D44.B45.C46.A47.D48.C49.B 50.D51.D52.A53.B54.A55.C56.C57.A58.D59.B

60.C Part B（10points） 61.希腊人认为，语言结构与思维过程之间存在着某种联系。这一观点在人们尚未认识到语言的千差万别以前就早已在欧洲扎下了根更多院校的考博英语真题及其解析或考博英语辅导体验请拨打全国免费咨询电话四零零六六八六九七八，加咨询扣扣七七二六七八五三七。 62.我们之所有感激他们（两位先驱），是因为在此之后，这些（土著）语言中有一些已经不复存在了，这是由于说这些语言的部族或是消亡了，或是被同化而丧失了自己的本族语言。 63.这些新近被描述的语言与已经得到充分研究的欧洲和东南亚地区的语言往往差别显著，以至于有些学者甚至指责Boas和Sapir编造了材料。 64.Who r f对语言与思维的关系很感兴趣，逐渐形成了这样的观点：在一个社会中，语言的结构决定习惯思维的结构。 65.Who r f进而相信某种类似语言决定论的观点，其极端说法是：语言禁锢思维，语言的语法结构能对一个社会的文化产生深远的影响。 Section IV Writing（20points） 66.（略）评分标准 I听力： A节：5小题，每题1分，共5分。 B节：5小题，每题1分，共5分。 C节：10小题，每题1分，共10分。 A、B两节对大、小写（专有名词除外）和标点符号不做要求，英、美拼法均可接受，但拼写错误不给分。