2017年桂林电子科技大学考博真题专业英语A卷博士研究生考试试题
桂林电子科技大学成人学士学位英语考试题目精选全文
可编辑修改精选全文完整版桂林电子科技大学成人学士学位英语考试题目1、The students _____ outdoors when the visitors arrived. [单选题] *A. were playing(正确答案)B. have playedC. would playD. could play2、The soldiers would rather die than give in. [单选题] *A. 呈交B. 放弃C. 泄露D. 投降(正确答案)3、As for the quality of this model of color TV sets, the ones made in Chine are by no means _____ those imported. [单选题] *A inferior thanB less inferior toC less inferior thanD. inferior to(正确答案)4、—______ my surprise, Zhu Hui won the first prize in the speech contest. —But I think he could, because he kept practicing speaking.（）[单选题] *A. To(正确答案)B. AboutC. ForD. In5、—Where did you get the book?—From my friend. I ______ it three days ago. （）[单选题] *A. lentB. borrowed(正确答案)C. keptD. returned6、_______ a busy afternoon! [单选题] *A. HowB. What(正确答案)C. WhichD. Wish7、39．—What do you ________ my new dress?—Very beautiful. [单选题] *A．look atB．think aboutC．think of(正确答案)D．look through8、64．Would you like to drink ________？[单选题] *A．something else(正确答案)B．anything elseC．else somethingD．else anything9、Jack would rather spend time complaining than_____the problem by himself. [单选题] *A.solve(正确答案)B.solvedC.solvesD.to solve10、--Why are you late for school today?--I’m sorry. I didn’t catch the early bus and I had to _______ the next one. [单选题] *A. wait for(正确答案)B. ask forC. care forD. stand for11、( ) --------Please take my seat here.-------- __________________________. [单选题]*A. That is nice of you(正确答案)B. I think it is my seatC. No, you sit hereD. I don’t think it’s a good seat.12、47．Yao Ming is tall. That's one of his ________. [单选题] *A．advantageB．advantages(正确答案)C．disadvantageD．disadvantages13、87．—Could you? ? ? ? ? ? me the way to the nearest hospital?—Sure. [单选题] * A．askB．tell(正确答案)C．talkD．speak14、Actually, we don't know whether this news comes from a reliable（）or not. [单选题] *A. source(正确答案)B. originC. basisD. base15、We got up early this morning and took a long walk after breakfast. We walked _____ the business section of the city. [单选题] *A. amongB. betweenC. through(正确答案)D. upon16、_______, Mr. Smith. [单选题] *A. Here your tea isB. Here is your tea(正确答案)C. Here your tea areD. Here are your tea17、40．Star wars is ______ adventure film and it is very interesting. [单选题] *A．aB．an (正确答案)C．theD．/18、A survey of the opinions of students（）that they admit several hours of sitting in front of the computer harmful to health. [单选题] *A. show；areB. shows ；is(正确答案)C.show；isD.shows ；are19、Tom didn’t _______ his exam again. It was a pity. [单选题] *A. winB. pass(正确答案)C. beatD. Fail20、The teacher has his students_____a composition every other week. [单选题] *B.writtenC.writingD.write(正确答案)21、—Who came to your office today, Ms. Brown?—Sally came in. She hurt ______ in P. E. class. （）[单选题] *A. sheB. herC. hersD. herself(正确答案)22、—John, How is it going? —______.（）[单选题] *A. It’s sunnyB. Thank youC. Well doneD. Not bad(正确答案)23、The bookstore is far away. You’d better _______ the subway. [单选题] *A. sitB. take(正确答案)D. get24、I knocked on the door but _______ answered. [单选题] *A. somebodyB. anybodyC. nobody(正确答案)D. everybody25、—Do you like to watch Hero?—Yes. I enjoy ______ action movies. （）[单选题] *A. watchB. watching(正确答案)C. to watchD. watches26、They may not be very exciting, but you can expect ______ a lot from them.（）[单选题] *A. to learn(正确答案)B. learnC. learningD. learned27、1．I saw ________ action film with my friend yesterday, and ________ film was amazing. [单选题] *A．a...aB．a...theC．an...the(正确答案)D．an...a28、She _______ be here. [单选题] *A. is gladB. is so glad to(正确答案)C. am gladD. is to29、The more he tried to please her, _____she seemed to appreciate it. [单选题] *A.lessB.lesserC.the less(正确答案)D.the lesser30、Is there going to ______ a football match in the stadium next month?（）[单选题] *A. beingB. haveC. be(正确答案)D. having。
桂林电子科技大学博士研究生入学考试最优化方法试题
科目代码： 2002 科目名称：最优化方法
请注意：答案必须写在答题纸上（写在试题上无效） 。
1.（本题满分 10 分） 函数 f ( x1 , x2 ) x1e ( x1 x2 ) 是否为凸函数？说明理由. 2.（本题满分 10 分）用最速下降法解问题 2 min f ( x) x12 4x2 2x1 x2 x1 3x2 .（取初点 x (1) (1,1)T ，迭代 1 次）
x12 x2 0 s.t. 2 x1 x2 3 0
5.（本题满分 15 分）用梯度投影法求解问题（取初始点 x (1) (0,0)T ，迭代 1 次）
2 min f ( x ) 2 x12 2 x2 2 x1 x2 4 x1 6 x2 2 x1 x2 0 s. t. 5 x1 5 x2 0 x , x 0 1 2
min x1 x2 3 3 7.（本题满分 10 分）证明点 x ( , ) T 是优化问题 4 2 s.t. 2 x1 x2 3 0
的局部最优解.
1 min x T Ax 2 8.（本题满分 10 分）设 x 是问题 的最优解，其中 A 为 n 阶正定矩阵. s. t. x b
证明 x 与 x b 关于 A 共轭.
第 1 页 共 1 页
3. （本题满分 10 分） 设 k 满足 f ( xk k d k ) min f ( xk d k ) . 证明： 若对 0 ，
0
2 1 有 2 f ( xk d k ) 1 ，则 f ( xk ) f ( xk k d k ) [d kT f ( xk )]2 / d k . 2 4.（本题满分 20 分）求解问题 min f ( x ) ( x1 3) 2 ( x2 1) 2
2017年桂林电子科技大学考研试题英语翻译基础(A卷)
桂林电子科技大学2017年硕士研究生统一入学考试试题科目代码:357科目名称:英语翻译基础A卷注意：答案必须全部写在答题纸上，写在试题上无效；答案要标注题号，答题纸要填写姓名和考号，并标注页码与总页数；交卷时，将答题纸与试题一起装入试卷袋，密封签字。
I.Translate the following terms into Chinese.(15points,1point for each)1.TPP2.THAAD3.cash on delivery4.PM2.55.tertiary industry6.G20Summit7.Oxbridge8.electoral college9.Constitutional Democracy10.Dark Matter Particle Explorer Satellite11.the rule of law12.The National Gene Pool13.ethnic diversity14.House of Lords15.intellectual property rightII.Translate the following terms into English.(15points,1point for each)1.广西壮族自治区2.虚拟现实3.物联网4.英语专业考试5.动车6.义务教育7.网约车8.民主集中制9.经济下行10.城镇化11.外出打工人员12.互联互通13.精准扶贫14.工匠精神15.民事法庭III.Translate the following passage into Chinese.(60points)1．“What is the nature of time?Will it ever come to an end?Breakthroughs in physics,made possible in part by fantastic new technologies,suggest answers to some of these longstanding questions.Someday these answers may seem obvious to us as the earth orbiting the sun---or perhaps as ridiculous as a tower of tortoises.Only time(whatever it may be)will tell”.(65words)2.A star,more than three times the size of our sun,ought to end its life,how?With a collapse.The gravitational forces of the entire mass overcoming the electromagnetic forces of the individual atoms, and so collapsing inwards.If the star is massive enough,it will continue this collapse,creating a black hole,where the warping of time-space is so great that nothing can escape,not even the light.It gets smaller and smaller.The star,in fact,gets denser as atoms,even subatomic particles get literally crushed into smaller and smaller space.And at its end point what we are left with?A space time singularity. Space and time come to a stop.(116words)3.It is clear that we are just an advanced breed of primates,on a minor planet orbiting,around an average star,in the outer suburb of one among a hundred billion galaxies.But ever since the dawn of civilization,people have craved for an understanding of the underlying order of the world.There ought to be something very special about the boundary conditions of the universe.And what can be more special than that there is no boundary?And there should be no boundary to human endeavor.We are all different.However bad life may seem,there is always something you can do,and succeed at.While there is life,there is hope.(113words)IV.Translate the following passage into English.(60points)让中加友好合作结出更多硕果“相知无远近，万里尚为邻。
桂林电子科技大学博士研究生入学考试随机过程试题
桂林电子科技大学博士研究生入学考试试题科目代码：2001 科目名称：随机过程请注意：答案必须写在答题纸上（写在试题上无效）。
一、填空题（每小题4分，共32分）1、机变量X特征函数，随机变量X的数学期望= 。
2、已知随机变量X服从均值为3的指数分布，随机变量Y服从[0,X]上的均匀分布，则= 。
3、设随机过程是均值函数为0，方差函数为的正交增量过程，且，则= 。
4、设是参数为的Wiener过程，令，对，的相关函数= 。
5、设随机过程，其中是均值函数为2，方差为1的随机变量，则随机过程的相关函数= 。
6、设为一齐次马氏链，其步转移概率为，状态是正常返态非周期的，若在0时刻从状态出发经过1,2,3步首次返回的概率分别为，则。
7、设是一平稳随机序列，其谱密度为，则的相关函数= 。
8、设平稳过程的谱密度为，则的相关函数= 。
二、解答题（共68分）1、（12分）设随机变量Y服从均值为1的指数分布，令求（1）随机过程X(t)的一维概率密度函数，（2）X(t)的相关函数。
2、（12分）设随机过程，其中A,B都是均值为零，方差为且不相关的随机变量，证明：（1）是宽平稳随机过程,(2)的均值是各态历经的。
3、（12分）设震动按参数为的泊松过程发生，并记内发生震动次数为。
(1)若震动在内已经发生n次，且，对于，求；(2)若某装置在k次震动后失灵，求该装置寿命T的密度函数。
4、（12分）在电路系统中，若输入电压是一实平稳过程，输出电压满足随机微分方程，其中为常数，且的均值为0，相关函数，。
求（1）输出过程；（2）的谱密度及相关函数。
5、（10分）设齐次马尔可夫链的状态空间为，其转移概率矩阵为试：（1）正确分解此链并指出各状态的常返性和周期；（2）求不可约闭集的平稳分布。
6、（10分）设群体中各个成员独立地活动且以指数率λ生育。
若假设没有任何成员死亡，以X(t)记时刻t群体的总量，则X(t)是一个纯生过程，其，状态空间，设转移为，试计算(1);（2）。
中国社会科学院2017年博士生入学考试英语试题考博英语真题
中国社会科学院2017年博⼠⽣⼊学考试英语试题考博英语真题中国社会科学院研究⽣院2017年攻读博⼠学位研究⽣⼊学考试试卷英语（B卷）2017年3⽉11⽇8:30–11:30答题说明1.请考⽣按照答题卡的要求填写相关内容。
在“姓名”⼀栏中，请⽤中⽂填写本⼈姓名；“试卷类型”⼀栏，本⼈⽆需填写。
2．在答题卡的“考⽣编号”⼀栏中填⼊本⼈的准考证号。
例如：考号为012345678900001，请考⽣在第⼀⾏中填写阿拉伯数字012345678900001，然后再将各栏中相应的数字涂⿊，如下图所⽰。
如不涂满，计算机将识别为⽆效试卷。
3.在答题卡上填写答案时，请务必按照图⽰将选项格涂满;在A,B,C,D四个选项中，只有⼀个正确答案。
填写两个或两个以上答案，本题⽆效。
如需涂改，请务必⽤橡⽪擦净后再重新填写。
4.试卷第三部分（包括阅读7选5、概要）、第四部分(包括英译汉、汉译英)，请考⽣直接写在英语试题答题纸上的指定位置，不再提供额外的答题纸。
请将以下题⽬的答案填写在答题卡上。
PART I:Cloze(20points)Directions:Choose the best word(s)for each numbered blank.During the mid–1980s,my family and I spent a__(1)__year in the historic town of St.Andrews,/doc/9ea84bb585868762caaedd3383c4bb4cf6ecb75e.html paring life there with life in America,we were impressed by a__(2)__ disconnection between national wealth and well-being.To mostAmericans,Scottish life would have seemed__(3)__.Incomes were about half that in the U.S.Among families in the Kingdom of Fife surrounding St.Andrews,44percent did not own a car,and we never met a family that owned two.Central heating in this place__(4)__south of Iceland was,at that time,still a luxury.In hundreds of conversations during our year there and during three half summer stays since,we ___(5)___noticethat,___(6)___their simpler living,the Scots appeared___(7)___joyful than Americans.We heard complaints about Margaret Thatcher,but never about being underpaid or unable to afford wants.Within any country,such as our own,are rich people happier?In poor countries,being relatively well off doesmake__(8)__somewhat better well off.But in affluent countries,where nearly everyone can afford life’s necessities,increasing affluence matters__(9)__little.In the U.S.,Canada,and Europe,the correlation between income and happiness is,as University of Michigan researcher noted in a1980s16–nation study,“virtually__(10)__”.Happiness is lower __(11)__the very poor.Butonce comfortable,more money provides diminishing returns.Even very rich people are only slightly happier than average.With net worth all___(12)___$100million,providing___(13)___money to buy things they don’t need and hardly care about,4 in5of the49people responding to survey agreed that“Money can increase or decrease happiness, depending on how it is used”.And some were indeed unhappy.One fabulously__(14)__man said he could never remember being happy.One woman reported thatmoney__(15)__misery caused by her children’s’problems.At the other end of life’s circumstances are most victims of disabling tragedies.Yet,remarkably, most eventually recover a near-normal level of day-to-day happiness.Thus,university students who must cope with disabilities are__(16)__able-bodied students to report themselves happy,and their friends agree with their self-perceptions.We have__(17)__the American dream of achieved wealth and well-being by comparing rich and unrich countries,and rich and unrich people.That leaves the final question:Over time,does happiness rise with affluence?Typically not.Lottery winners appear to gain but a temporary jolt of joy from their winnings. On a small scale,a jump in our income can boost our morale,for a while.But in the long run, neither an ice cream cone nor a new car nor becoming rich and famous produces the same feelings of delight that it initially___(18)___.Happiness is not the result of being rich,buta__(19)__ consequence of having recently become richer.Wealth,it therefore seems,is like health:Although its utter absence can breed misery,having it does not guarantee happiness.Happiness is__(20)__a matter of getting what we want than of wanting what we have.1. a.underpaid b.prosperous c.affluent d.sabbatical2. a.assumed b.seeming c.seemed d.seemly3. a.precarious b.imprudent c.spartan d.gallant4. a.not far b.as far as c.far from d.far to5. a.virtually b.remarkably c.ideally d.repeatedly6. a.forasmuch b.despite c.considering d.inasmuch7. a.no less b.less c.more d.no more8. a.for b.up c.out d.over9. a.scarely b.intentionally c.surprisingly d.provisionally10.a.diminishing b.negligible c.tripled d.perceivable11.a.in b.on c.upon d.among12.a.exceeded b.exceeding c.excess d.excessive13.a.utter b.messy c.greedy d.ample14.a.prosperous b.triumphant c.jubilant d.victorious15.a.could undo b.could intensifyc.could not undod.could not intensify16.a.as plausible as b.not as plausible asc.as likely asd.not as likely as17.a.ventilated b.deliberated c.speculated d.scrutinized18.a.does b.did c.has done d.is19.a.new b.favorite c.temporary d.normal20.a.more b.less c.better d.worsePART II:Reading Comprehension(30points)Directions:Choose the best answers based on the information in the passages below. Passage1In the1960s and’70s of the last unlamented century,there was a New York television producer named David Susskind.He was commercially successful;he was also,surprisingly,a man of strong political views which he knew how to present so tactfully that networks were often unaware of just what he was getting away with on their—our—air.Politically,he liked to get strong-minded guests to sit with him at a round table in a ratty building at the corner of Broadway and42nd Street.Sooner or later,just about everyone of interest appeared on his program.Needless to say,he also had time for Vivien Leigh to discuss her recent divorce from Laurence Olivier,which summoned forth the mysterious cry from the former Scarlett O’Hara,“I am deeply sorry for any woman who was not married to Larry Olivier.”Since this took in several billion ladies(not to mention those gentlemen who might have offered to fill,as it were,the breach),Leigh caused a proper stir,as did the ballerina Alicia Markova,who gently assured us that“a Markova comes only once every hundred years or so.”I suspect it was the dim lighting on the set that invited such naked truths.David watched his pennies.I don’t recall how,or when,we began our“States of the Union”programs.But we did them year after year.I would follow whoever happened to be president,and I’d correct his“real”State of the Union with one of my own,improvising from questions that David would prepare.I was a political pundit because in a1960race for the House of Representatives(upstate New York), I got more votes than the head of the ticket,JFK;in1962,I turned down the Democratic nomination for U.S.Senate on the sensible ground that it was not winnable;I also had a pretty good memory in those days,now a-jangle with warning bells as I try to recall the national debt or,more poignantly,where I last saw my glasses.。
(完整word版)桂林电子科技大学-研究生英语考试
2014-2015研究生英语考试I . Listening Comprehension（25％）Section A (10%) (听到10个简短的对话,对话完，问你个问题，只有一次机会嫑墨迹) 1-10略课外Section B(7％)(两个短文，第一篇完思考40秒，回答11—14,第二篇完，再思考，判断正误）课内Further Listening选1篇短文，课外1篇短文Passage One (4%) 11-14略Passage Two:True or False （3%）15-17略Section C Dictation (8%)(说三遍！）18-25略课内Further Listening 3一篇短文填空，每空两词II．Reading Comprehension （30％）课外，4篇Passage OneLike many of my generation, I have a weakness for hero worship. At some point, however，we all begin to question our heroes and our need for them。
This leads us to ask: What is a hero？Despite immense differences in cultures，heroes around the world generally share a number of characteristics that instruct and inspire people。
A hero does something worth talking about。
A hero has a story of adventure totell and a community who will listen. But a hero goes beyond mere fame.Heroes serve powers or principles larger than themselves. Like high—voltage（电压）transformers, heroes take the energy of higher powers and step it down so that it can be used by ordinary people。
考博英语(词汇)历年真题试卷汇编37.doc
考博英语(词汇)历年真题试卷汇编37.doc－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－考博英语（词汇）历年真题试卷汇编37(总分：50.00，做题时间：90分钟)一、Structure and Vocabu(总题数：25，分数：50.00)1.A police officer was sent to______ the crime.（分数：2.00）A.searchB.investigateC.surveyD.explore2.Wherever there is matter, there is energy; all changes of matter______changes in the form of the energy.（分数：2.00）A.retainB.includeC.containD.involve3.Building this road will ______ the construction of ten bridges, then the total cost reaches1 million US Dollars.(2004年西南财经大学考博试题)（分数：2.00）A.evolveB.involveC.revolveD.devolve4.Please do not be______ by his bad manners since he is merely trying to attract attention.(2004年3月中国科学院考博试题)（分数：2.00）A.disgustedB.embarrassedC.irritatedD.shocked5.The infected girl was______ from the rest of the family.（分数：2.00）A.dismissedB.isolatedC.restrainedD.confined6.The area is______with trails, some as wide as boulevards, that have been cut and maintained by elephant.(2003年西南财经大学考博试题)（分数：2.00）A.blackmailed/doc/99e28243c67da26925c52cc58bd63186bdeb9273.htmltticedC.isolatedD.galloped7.The point at______ at the meeting is whether they are to import the assembly line.(2005年春季电子科技大学考博试题)（分数：2.00）A.argumentB.controversyC.issueD.conflict/doc/99e28243c67da26925c52cc58bd63186bdeb9273.htmlwyer have aterrible habit of using Latin and industry ______ to mystify people and themselves more valuable.(2002年复旦大学考博试题)（分数：2.00）A.inflectionsB.dialects答案见麦多课文库C.accentD.jargon9.The senator agrees that his support of the action would ______ his chances for reelection.(2003年南京大学考博试题)（分数：2.00）A.obscureB.mystifyC.distinguishD.jeopardize10.The disagreement over trade restrictions could seriously ______ relations between the two countries.(2015年北京航空航天大学考博试题)（分数：2.00）A.tumbleB.jeopardizeC.manipulateD.intimidate11.John Smith is a______ ; he helps to write newspapers.（分数：2.00）A.correspondentB.journalistC.writerD.playwright12.At the moment my car is at the garage being made ready for a(n)______across Europe.（分数：2.00）A.travelB.voyageC.journeyD.excursion13.The critic's assessment of the book is that it is beautifully written.(2004年秋季电子科技大学考博试题)（分数：2.00）/doc/99e28243c67da26925c52cc58bd63186bdeb9273.htmlprehensionB.recommendationC.admirationD.judgment14.She worked hard at her task before she felt sure that the results would______her long effort.（分数：2.00）A.justifyB.testifyC.rectifyD.verify15.The official was arrested for inability to______ all his fortune he has enjoyed.(2004年武汉大学考博试题)（分数：2.00）A.clarifyB.intensifyC.verifyD.justify16.You don't have to______yourself. I think you did the right thing putting your mother in a nursing home.(2003年上海交通大学考博试题)（分数：2.00）A.justifyB.hinderC.indulgeD.appoint答案见麦多课文库17.The Japanese personnel manager had to ______ keeping a chemist on the payroll even though the company no longer needed his expertise.(2011年南京师范大学考博试题)（分数：2.00）A.modifyB.justifyC.sustain/doc/99e28243c67da26925c52cc58bd63186bdeb9273.htmlunch18.The attack of the World Trade Center will leave a______ impression on those who have witnessed the explosion.(2002年春季上海交通大学考博试题)（分数：2.00）A.longB.forever/doc/99e28243c67da26925c52cc58bd63186bdeb9273.htmlstingD.lively19.Are you going to attend Prof. Barker's______on Brain Electronics tomorrow?（分数：2.00）A.conferenceB.discussionC.debateD.lecture20.When a person dies, his debts must be paid before his______can be distributed. (2004年中国人民大学考博试题)（分数：2.00）A.paradoxesB.legaciesC.platitudesD.analogies21.Now the public has an unprecedented chance to peer over the shoulders of archaeologists and historians and get a firsthand look at the______ of the Mongols and their Asian predecessors.(2004年四川大学考博试题)（分数：2.00）A.legacyB.bequestC.converseD.miracle22.Equal Rights ______ has been passed that should benefit all.（分数：2.00）A.proposalB.pollC.proceedingD.legislation23.Intellectual property is a kind of ______ monopoly, which should be used properly or elsewould disrupt healthy competition order.(中国科学院2011年3月试题)（分数：2.00）A.legibleB.legendaryC.lenientD.legitimate24.If I had a car of my own, I______it to your sister yesterday.(2014年厦门大学考博试题)（分数：2.00）A.will lendB.would lendC.should lendD.would have lent25.______any one should think it strange, let me assure you that it is quite true.(2006年清华大学考博试题)（分数：2.00）答案见麦多课文库A.In order thatB.LestC.IfD.Providing答案见麦多课文库感谢阅读，欢迎大家下载使用！。
2022年考研考博-考博英语-电子科技大学考试全真模拟易错、难点剖析AB卷(带答案)试题号：86
2022年考研考博-考博英语-电子科技大学考试全真模拟易错、难点剖析AB卷（带答案）一.综合题(共15题)1.单选题The machine might work if we（）it very carefully.问题1选项A.obtainB.operateC.opposeD.object【答案】B【解析】句意:如果我们非常小心地操作这台机器,那么它可能会运转。
考查动词辨析。
obtain (尤指经努力)获得,赢得,存在;operate 运转,工作,操作,控制,使运行;oppose 反对,对抗;object 反对,拒绝。
空格处动词的宾语为it,即指代前面的machine(机器),因此B符合句意。
2.单选题It takes much time to solve the problem one by one. Can we generalize common（）to apply to similar problems?问题1选项A.meansB.techniquesC.tipsD.solutions 【答案】D【解析】句意:一个接一个地解决问题需要很多吋间。
我们能归纳出适用于所有类似问题的通用解决方法吗？考查名词辨析。
means 手段,方法;technique 技巧,技艺,工艺;tip尖端,尖儿,端;solution 解决方案,溶液,溶解。
根据关键信息“problem (问题)”可知D符合句意。
3.单选题Those who（）traffic regulations should be punished.问题1选项A.rotateB.violateC.abuseD.degrade【答案】B【解析】句意:违反交通法规的那些人应该受处罚。
考查动词辨析。
rotate (使)旋转,转动;(工作)由…轮值;violate 违反,违犯,违背(法律、协议等),侵犯(隐私等);abuse 滥用,虐待;degrade 贬低,使……丢脸,使……降级,使降解。
2016年桂林电子科技大学考博试题1001英语
A) lingers
B) invests
C) deserves
D) thrives
8. You should ________ your letter with a phone call.
A) follow
B) lift up
C) follow up
D) pass along
9. Bob’s __________comments insulted me
things about the meal I’d cooked.
A）complimentary B）complimented
C）complementary D）complement
5. He has some ________ ideas about what to do, but nothing specific.
本大题共 20 小题，每小题 0.5 分，本大题共 10 分
1. Their study shows that sports skills_________ into personal life.
A) take over
B) carry over
C) turn over
D) come over
2. A similar ___________of female to male students has been observed in law and medical school
14. Typical jokes or ______ stories have a three-part anatomy that is easily recognized.
A) humorist B) humorous C) humorless
电子科大2017考博泛函分析真题及答案
n
An xn1 在 Y 中有界，即对 x X ，
sup An x
n1
由共鸣定理，存在 M 0 ，使得
An M ， n 1
于是
Ax lim An x lim An x M x
故
A L X , Y ，且 A lim An
6、证明：因为 xn n1 弱收敛于 x ，则 x n 有界。对每个 t [a, b] ，
证毕。 2、证明：因为 yn 是完备距离空间 X , 中的基本列，所以 yn 收敛，不妨设
yn , y ， n
则
xn , y xn , yn yn , y 2
所以 xn 收敛。 3、证明： 0 ，存在 x1 ，使得
1 1 z ( s)ds ，则 2 0
t[0,1]
Tu , Tv max
1 1 max u ( s ) v( s ) ds 2 0 t[0,1] 1 1 max u (t ) v(t ) u , v 2 t[0,1] 2
1 1 1 1 ( ) u s ds v( s )ds 2 0 2 0
令
ft ( x) x(t ) ， x(t ) C[a, b]
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lim xn (t ) lim ft ( xn ) ft ( x) x(t )
n n
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n
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x X , An x都在Y中收敛则存在 A L X , Y 使An 强收敛与 A, 且 A lim inf An
2022年考研考博-考博英语-电子科技大学考试全真模拟易错、难点剖析AB卷(带答案)试题号：42
2022年考研考博-考博英语-电子科技大学考试全真模拟易错、难点剖析AB卷（带答案）一.综合题(共15题)1.单选题The device can（）different measurements by electronics means.问题1选项A.imitateB.copyC.mockD.fake【答案】A【解析】句意:这个设备能通过电子手段来模拟不同的尺寸。
考查动词辨析。
Imitate模仿,仿效,模仿(某人的讲话、举止); copy 复制,抄袭;mock 愚弄,嘲弄;fake 捏造,假装…的样子。
故A符合句意。
2.单选题Fewer and fewer of today’s workers expect to spend their working lives in the same field,（）the same company.问题1选项A.all elseB.much worseC.let aloneD.less likely 【答案】C【解析】句意:如今越来越少的工人期望在工作生涯中都一直在同样的领域工作，更不必说一直在同样的公司工作。
考查短语辨析。
all else 其他所有;much worse 更糟糕的是;let alone 更不用说，听任，不打扰；less likely 最不可能的是，较少可能。
空格前后表示递进,故选C。
3.单选题Do you regret paying fifty dollars for the dog?” “No, I would gladly pay（）for hi m.”问题1选项A.as much twiceB.twice so muchC.much twiceD.twice as much【答案】D【解析】句意:你后悔为这条狗支付50美元不？”。
“不，我乐意为了他支付双倍”。
语法题。
考查倍数的表达。
倍数的固定表达方式: 倍数+as+形容词或副词+（as+另一比较对象）,前文己交代另一比较对象的情况下，括号中的部分可省略来避免重复,因此D正确。
2017年广西桂林电子科技大学电磁场与微波技术考研真题A卷
2017年广西桂林电子科技大学电磁场与微波技术考研真题A 卷一、 简答题（32分）1. （6分）什么是色散效应？什么是趋肤效应？2. （6分）请简述何为均匀平面波，以及理想介质中均匀平面波有何特点？3. （6分）均匀平面波对两种介质分别面垂直入射，简述反射系数和透射系数的定义，以及它们之间存在什么关系？4. （6分）什么叫TE 模、TM 模和TEM 模？5. (8分) 测得某二端口网络的S 矩阵为0.10.80.80.2j S j问此二端口网络是否互易和无耗，并给出理由？二、 填空题（24分）1、时变电磁场中，一般两种媒质（普通煤质）的边界条件为： ， ， ， 。
2、特性阻抗为Z0 的无耗传输线终接实数负载RL 时，距离负载λ/2 处等效阻抗为 ，而距离负载λ/4 处其等效阻抗为3、带状线上传输的主模为 ，微带线传输的主模是 ，矩形波导传输的主模为 。
4、若真空中一均匀平面电磁波3cos()3sin()x y E e t kz e t kz ωω=-+- ， 则该平面波传播方向为 ,极化形式为 ，旋向为 。
三、 计算题(15分)如图，同轴线内半径为b ，外导体的内径为a ，内外导体间填充介电常数为ε的均匀电介质。
若设同轴线内外导体单位长度带电量分别为ρl 和-ρl 。
（同轴线可看成无限长柱状结构）求：1、同轴线内外导体间的电位移矢量D ；2、同轴线内外导体间的电压；四、 计算题（15分）一均匀平面波沿+z 方向传播，其电场强度矢量为i 200sin()100cos()V/m x y E e t z e t z ωβωβ=-+-（1）求电场强度的复数形式，相伴的磁场强度的复数形式和瞬时形式；（2）若在传播方向上z = 0处，放置一无限大的理想导体平板，求区域 z < 0 中的反射电场强度和磁场强度的复数形式，再求z < 0中合成电场和合成磁场；（3）求理想导体板表面的电流密度。
五、计算题（14分）已知空气填充铜制波导BJ-120的尺寸为a=19.050mm，b=9.525mm。
桂电考博英语
桂电考博英语In the realm of higher education, the pursuit of a doctoral degree represents a significant milestone. AtGuilin University of Electronic Technology (Guidian), the English proficiency requirement for doctoral candidates poses a unique challenge, offering both obstacles and opportunities for aspiring scholars. This article explores the nuances of this requirement, its impact on candidates, and the strategies that can be employed to overcome the hurdle.The significance of English in the academic worldcannot be overstated. As a global language of communication, English facilitates the exchange of ideas and knowledge across borders. In the context of doctoral studies, proficiency in English is not just a requirement but also a tool for accessing a vast repository of research and scholarship. At Guidian, this proficiency is assessed through a comprehensive English examination, which tests candidates' reading, writing, listening, and speaking abilities.The challenges posed by this examination are numerous. Firstly, the exam requires a high level of language proficiency, which can be a daunting task for non-native speakers. Secondly, the exam format and content can be unfamiliar to many, requiring a significant amount of preparation. Lastly, the pressure of performing well inthis exam can add to the already stressful process of pursuing a doctoral degree.However, despite these challenges, the English proficiency requirement at Guidian presents numerous opportunities. Firstly, it encourages candidates to develop their English skills, which are invaluable in the international academic community. Secondly, the exam helps candidates identify areas of weakness in their language skills, allowing them to focus on improvement. Finally, the exam prepares candidates for the rigors of academic research and publication, where English is often the primary language of communication.To overcome the hurdle of the English examination, candidates can adopt a variety of strategies. Firstly, regular practice is essential. Candidates should aim toimprove their English skills through reading, writing, listening, and speaking activities. Secondly, familiarizing oneself with the exam format and content is crucial. Candidates should review sample questions and past exams to understand the types of questions they will encounter and the expected level of proficiency. Finally, seeking professional help can be beneficial. Candidates can seek guidance from teachers, mentors, or language experts to address areas of concern and improve their language skills. In conclusion, the English proficiency requirement at Guidian University of Electronic Technology, while posing challenges, also offers valuable opportunities for doctoral candidates. By embracing the challenge, candidates can develop their English skills, prepare for the rigors of academic research, and enhance their chances of success in the international academic community. With the right strategies and perseverance, the English examination can be overcome, leading to the fulfillment of a doctoral degree and a new horizon of academic achievements.**桂电考博英语：挑战与机遇并存**在高等教育领域，攻读博士学位是一个重要的里程碑。
桂林电子科技大学2017年考研试题211翻译硕士英语A
桂林电子科技大学2017年硕士研究生统一入学考试试题科目代码: 211 科目名称: 翻译硕士英语A卷注意：答案必须全部写在答题纸上，写在试题上无效；答案要标注题号，答题纸要填写姓名和考号，并标注页码与总页数；交卷时，将答题纸与试题一起装入试卷袋，密封签字。
Part I Grammar and Vocabulary （30%）There are thirty sentences in this section. Beneath each sentence there are four words or phrases mark A, B, C and D. Choose one word or phrase that best completes the sentence.Mark your answers on your answer sheet.1. During the big fire in the school, the teacher _______ the students into groups and asked each groupto carry water to throw on the flames.A. dispersedB. organizedC. scatteredD. ordered2. His poor health _______ him to resign from his job.A. compelledB. treasuredC. transplantedD. trimmed3. They were trying to _______ the fact that they had lost everything.A. take upB. look toC. take toD. face up to4. In spite of the _______ , it seemed that many of the invited guests would still show up.A. deviationB. distinctionC. controversyD. comparison5. His _______ directions confused us; we did not know which of the two roads to take.A. ambiguousB. complicatedC. arbitraryD. intricate6. The famous scientist _______ his success to hard work.A. impartedB. grantedC. ascribedD. acknowledged7. The old lady has developed a ________ cough which cannot be cured completely in a short time.A. perpetualB. permanentC. chronicD. sustained8. Nepal is a country in central Asia that is landlocked and _______ by the Himalayas.A. secludedB. borderedC. integratedD. opened9. This old lady is so _______ that she even believes what a stranger says.A. sophisticatedB. guiltyC. sarcasticD. gullible10. The prodigal son spent his money extravagantly and soon after he left home he was reduced to a beggar.A. lavishlyB. economicallyC. thriftilyD. extrovertly11. The court met again after an adjournment of two weeks.A. continuationB. suspensionC. accomplishmentD. commencementC. three-fourths the timeD. the three-fourths time27. These goods are sold at reduced prices, ________.A. the defects are pointed out to the customerB. the defects pointed out to the customersC. the defects have been pointed out to the customersD. the defects being pointed out to the customersst year, I paid a three-day visit to the company as a visiting engineer and was treated______.A. suchB. like itC. as suchD. such as29. This is _______. She wrote her name on the first page.A. a Sherry’s bookB. a book of SherryC. Sherry’s a bookD. a book of Sherry’s30. Fond of singing as she is, she is _______ a good singer by profession.A. everything butB. anything butC. nothing butD. something butPart II Reading Comprehension(40%)Section 1 Multiple-choice Questions.(30%)In this section, there are three passages followed by questions or unfinished statements, each with four suggested answers marked A, B, C and D. Choose the one that you think is the best answer and m ark your answer on your ANSWER SHEET.Passage 1Biologically, there is only one quality which distinguishes us from animals: the ability to laugh. In auniverse which appears to be utterly devoid of humor, we enjoy this supreme luxury. And it is a luxury,for unlike any other bodily process, laughter does not seem serve a biologically useful purpose. In adivided world, a laughter is a unifying force. Human begins oppose each other on a great many issues.Nations may disagree about systems of government and human relations may be plagued by ideologicalfactions and political camps, but we all share the ability to laugh. And laughter, in turn, depends on themost complex and subtle of all-human qualities: a sense of humor. Certain comic stereotypes have auniversal appeal. This can best be seen from the world-wide popularity of Charlie Chaplain's early films.The little man at odds with society never fails to amuse no matter which country we come from. As thatgreat commentator on human affairs, Dr. Samuel Johnson, once remarked, "Men have been wise in verydifferent modes; but they have always laughed in the same way."A sense of humor may take various forms and laughter may he anything from refined tinkle to anearth-quaking roar, but the effect is always the same. Humor helps us to maintain a correct sense of values. It is the one quality which political fanatics appear to lack. If we can see the funny side, we never make the mistake of taking ourselves too seriously. We are always reminded that tragedy is not really far removed from comedy, so we never get a lop-sided view of things.This is one of the chief functions of satire and irony. Human pain and suffering are so grim; we hover so often on the brink of war, political realities are usually enough to plunge us into total despair. In such circumstances, cartoons and satirical accounts of somber political events redress the balance. They take the wind out of pompous and arrogant politicians who have lost their sense of proportion. They enable us to see that many of our most profound actions are merely comic or absurd. We laugh when a great satirist like Swift writes about wars in Gulliver's Travels. The Lilliputians and their neighbors attack each other because they can't agree which end to break an egg. We laugh because we are meant to laugh; but we are meant to weep too. It is no wonder that in totalitarian regimes any satire against the Establishment is wholly banned. It is too powerful weapon to be allowed to flourish.The sense of humor must be singled out as man's most important quality because it is associated with laughter. And laughter, in turn, is associated with happiness. Courage, determination, initiative -- these are qualities we share with other forms of life. But the sense of humor is uniquely human. If happiness is one of the great goals of life, then it is the sense of humor that provides the key.31. The author quotes Dr. Samuel Johnson's words to_________ .A. criticize the hypocrisy of politiciansB. readdress the popularity of Chaplin.C. illustrate a universal appeal of humorD. ban satires in totalitarian regimes32. According to the author, which of the following can be a chief function of the sense of humor?A. Strengthening human relations.B. Keeping a correct sense of values.C. Eliminating comic stereotypes.D. Singling out adverse comments.33. If one gets a lop-sided view of things, he is likely to ________ .A.detach tragedy from comedyB. associate humor with laughterC. identify pain with happinessD. combine satire with irony34. We can infer from Paragraph 3 that_______ .A. Satires and ironies overemphasize less serious aspects of human life.B. Arrogant politicians enable others to appreciate profound actions.C. Many issues on trivialities may arise for lack of a touch of humor.D. A sense of humor inevitably prompts us to take ourselves seriously.35. To which of the following is the author likely to agree?A. Satire and irony can be very harsh and cruel, not funny at all.。
2017年桂林电子科技大学考博真题311通信电子电路及EDA技术B博士研究生考试试题
A、振幅鉴频器B、相位鉴频器移C、比例鉴频器D、相乘积鉴频器
二、计算题（每题10分，共30分）
1.小信号LC谐振放大器如下图所示，其谐振频率为10MHz，理想变压器T的初次级匝数相等，谐振元件L、C的损耗皆不计，负载电阻 ，晶体管的Y参数为： ， ， ， ， ， 为旁路电容或耦合电容。
C、乘积型同步检波器能解调AM、DSB、SSB信号；
共3页第1页
请注意：答案必须写在答题纸上（写在试卷上无效）。
D、检波器属于频谱的线性搬移过程。
9.单一频率调制信号的幅度是U、频率为 时，调相波的最大频偏为 ，当调制信号的频率变为 、幅度变为2U时，调相波的最大频偏变成原来的（）倍。
A、0.5 B、1C、2 D、4
C、纯电阻、最小D、纯电阻、最大
2.单级单调谐高频放大器的矩形系数不可能是（）。
A、9.95B、3.4C、3.2D、1
3.设计良好的以下功放电路，最大功率效率最高的是（）。
A、A类B、AB类C、B类D、C类
4.高频功放状态中，适合做发射机末级的状态是（）状态。基极调幅时，高频谐振
功率放大器工作在（）状态。
写出下列缩写的中文含义：
ASIC：RTL：
FPGA：SOPC：
CPLD：LPM：
EDA：IEEE：
IP：ISP：
六、简答题（每小题5分，共10分）
1.进程语句的启动条件是怎样？
2.Reg型和wire型信号有什么本质的区别？
七、编程题（共10分）
编程实现两个4位二进制数相减的程序。
共3页第3页
（4）计算检波器的输出信号 ；
（5）判断此检波器有无惰性失真。
共3页第2页
电子科技大学考博英语
电子科技大学2008年博士研究生(秋季)入学试题考试科目：1002英语考试层次：博士入学考试时间：180分钟考试总分：100分Part I Vocabulary & Structure (15%; 0.5 for each)Directions: There are 30 incomplete sentences in this part. For each sentence there are four choices marked A ), D ) , C) and D ) . Choose the ONE that best completes thesentence. Then mark the corresponding letter on the Answer Sheet with a singleline through the centre.1. __dull he may be, he is certainly a very successful top executive.[A]. Although [B] whatever [C] As [D]. However2. If only I __play the guitar as well as you![A] would [B] could [C] should [D] might3. The party, __I was the guest of honour, was extremely enjoyable.[A] by which [B] for which [C] to which [D] at which4 It's high time we __ cutting down the rainforests.[A] stopped [B] had to stop [C] shall stop [D] stop5 The student said there were a few points in the essay he __ impossible to comprehend.[A] has found [B] was finding [C] had found [D] would find6 Loudspeakers were fixed in the hall so that everyone__ an opportunity to hear the speech.[A] ought to have [B] must have [C] may have [D] should have7 I am surprised__ this city is a dull place to live in.[A] that you should think [B] by what you are thinking[C] that you would think [D] with what you were thinking8 Susan is very hardworking, but her pay is not__ for her work.[A] enough good [B] good enough [C] as good enough [D] good as enough9 It is imperative that the government __ more investment into the shipbuilding industry.[A] attracts [B] shall attract [C] attract [D] has to10 Land belongs to the city; there is __ thing as private ownership of land.[A] no such a [B] not such [C] not such a [D] no such11 My daughter has walked eight miles today. We never guessed that she could walk__far.[A] / [B] such [C] that [D] as12 The statistics __ that living standards in the area have improved drastically in recent times.[A] proves [B] is proving [C] are proving [D] prove13 There are only ten apples left in the baskets, __ the spoilt ones.[A] not counting [B] not to count [C] don't count [D] having not counted14 It was __ we had hoped.[A] more a success than [B] a success more than[C] as much of a success as [D] a success as much as15 There used to be a petrol station near the park, __?[A] didn't it [B] doesn't there [C] usedn't it? [D] didn't there16 It is an offence to show __ against people of different races.[A] distinction [B] difference [C] separation [D] discrimination17 A great amount of work has gone into __ the Cathedral to its previous splendour.[A] refreshing [B] restoring [C] renovating [D] renewing18 The thieves fled with the local police close on their __.[A] backs [B] necks [C] toes [D] heels19 The economic recession has meant that job__ is a rare thing.[A] security [B] safety [C] protection [D] secureness20 Many people nowadays save money to __ for their old age.[A] cater [B] supply [C] provide [D] equip21 The tone of the article __ the writer's mood at the time.[A] reproduced [B] reflected [C] imagined [D] imitated22 This is not the right __ to ask for my help; I am far too busy even to listen.[A] time [B] opportunity [C] chance [D] case23 The job of a student accommodation officer__ a great many visits to landladies.[A] concerns [B] offers [C] asks [D] involves24 Our family doctor's clinic __at the junction of two busy roads.[A] rests [B] stands [C] stays [D] seats25 She was so fat that she could only just __ through the door.[A] assemble [B] appear [C] squeeze [D] gather26 After the heavy rain, a builder was called to repair the roof, which was __.[A] leaking [B] trickling [C] prominent [D] noticeable27 The reception was attended by __ members of the local community.[A] excellent [B] conspicuous [C] prominent [D] noticeable28 Share prices on the Stock Exchange plunged sharply in the morning but __slightly in the afternoon.[A] regained [B] recovered [C] restored [D] revived29 His brain has worked away on the idea of a universal cure.[A] rich [B] quick [C] productive [D] fertile30 The couple has donated a not__ amount of money to the foundation.[A] inconsiderable [B] inconsiderate [C] inaccurate [D] incomparablePart II Reading Comprehension ( 50 scores; two for each)Directions: There are six passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A), B), C), andD). You should decide on the best choice and mark the corresponding letter onAnswer Sheet with a single line through the centre.TEXT AIn the case of mobile phones, change is everything. Recent research indicates that the mobile phone is changing not only our culture, but our very bodies as well.First. Let's talk about culture. The difference between the mobile phone and its parent, thefixed-line phone, you get whoever answers it.This has several implications. The most common one, however, and perhaps the thing that has changed our culture forever, is the "meeting" influence. People no longer need to make firm plans about when and where to meet. Twenty years ago, a Friday night would need to be arranged in advance. You needed enough time to allow everyone to get from their place of work to the first meeting place. Now, however, a night out can be arranged on the run. It is no longer "see you there at 8", but "text me around 8 and we'll see where we all are".Texting changes people as well. In their paper, "insights into the Social and Psychological Effects of SMS Text Messaging", two British researchers distinguished between two types of mobile phone users: the "talkers" and the "texters"-those who prefer voice to text message and those who prefer text to voice.They found that the mobile phone's individuality and privacy gave texters the ability to express a whole new outer personality. Texters were likely to report that their family would be surprised if they were to read their texts. This suggests that texting allowed texters to present a self-image that differed from the one familiar to those who knew them well.Another scientist wrote of the changes that mobiles have brought to body language. There are two kinds that people use while speaking on the phone. There is the "speakeasy": the head is held high, in a self-confident way, chatting away. And there is the "spacemaker": these people focus on themselves and keep out other people.Who can blame them? Phone meetings get cancelled or reformed and camera-phones intrude on people's privacy. So, it is understandable if your mobile makes you nervous. But perhaps you needn't worry so much. After all, it is good to talk.31 when people plan to meet nowadays, they[A] arrange the meeting place beforehand.[B] postpone fixing the place till last minute.[C] seldom care about when and where to meet.[D] still love to work out detailed meeting plans.32 According to the two British researchers, the social and psychological effect are mostly likely to be seen on[A] TALKERS[B] the "speakeasy"[C] the "spacemaker"[D] texters33 We can infer from the passage that the texts sent by texters are _____.[A] quite revealing[B] well written[C] unacceptable by others [D] shocking to others34 According to the passage, who is afraid of being heard while talking on the mobile?[A] talkers[B] the speakeasy[C]the spacemaker[D] texters35 An appropriate title for the passage might be_____.[A] the SMS effect [B] cultural implication of mobile use[C] change in the use of the mobile[D] body language and the mobile phone!TEXT BOver the last 25 years, British society has changed a great deal-or at least many parts of it have. In some ways, however, very little has changed, particularly where attitudes are concerned. Ideas about social class-whether a person is "working-class" or "middle-class"-are one area in which changes have been extremely slow.In the past, the working-class tended to be paid less than middle-class people, such as teachers and doctors. As a result of this and also of the fact that workers' jobs were generally much less secure, distinct differences in life-styles and attitudes came into existence. The typical working man would collect his wages on Friday evening and then, it was widely believed, having given his wife her "housekeeping", would go out and squander the rest on beer and betting.The stereotype of what a middle-class man did with his money was perhaps nearer the truth. He was-and still is - inclined to take a longer-term view. Not only did he regard buying a house of these provided him and his family with security. Only in very few cases did workers have the opportunity （or the education and training）to make such long-term plans.Nowadays, a great deal has changed. In a large number of cases factory workers earn as much, if not more, than their middle-class supervisors. Social security and laws to improve century, have made it less necessary than before to worry about "tomorrow". Working-class people seem slowly to be losing the feeling of inferiority they had in the past. In fact there has been a growing tendency in the past few years for the middle-classes to feel slightly ashamed of their position.The changes in both life-styles and attitudes are probably most easily seen amongst younger people. They generally tend to share very similar tastes in music and clothes, they spend their money in having a good time, and save for holidays or longer-term plans when necessary. There seems to be much less difference than in precious generations. Nevertheless, we still have a wide gap between the well-paid （whatever the type of job they may have）and the low-paid. As long as this gap exists, there will always be a possibility that new conflicts and jealousies will emerge, or rather that the old conflicts will re-appear, but between different groups.36, which of the following is seen as the cause of class differences in the past?[A] life style and occupation[B]Attitude and income[C] income and job security[D] job security and hobbies37 the writer seems to suggest that the description of —— is closer to truth?[A] middle -class ways of spending money[B] working-class ways of spending the weekend[C] working-class drinking habits[D] middle-class attitudes38 according to the passage, which of the following is not a typical feature of the middle -class?[A] desiring for security [B] Making long term plans[C] having priorities in life [D] saving money39 working -class people's sense of security increased as a result of all the following factors except?[A] better social security[B] more job opportunities[C] higher living standard [D] better legal protection.40 Which of the following statements is incorrect?[A] Changes are slowly taking place in all sectors of the British society.[B] The gap between working -class and middle- class young people is narrowing.[C] difference in income will remain but those in occupation will disappear.[D] middle-class people may sometimes feel inferior to working-class people.TEXT CFor several days I saw little of Mr. Rochester. In the morning he seemed much occupied with business, and in the afternoon gentlemen from the neighourhood called and some times stayed to dine with him. When his foot was well enough, he rode out a great deal.During this time, all my knowledge of him was limited to occasional meetings about the house, when he would sometimes pass me coldly, and sometimes bow and smile. His changes of manner did not offend me, because I saw that I had nothing to do with the cause of them.One evening, several days later, I was invited to talk to Mr. Rochester after dinner. He was sitting in his armchair, and looked not quite so severe, and much less gloomy. There was a smile on his lips, and his eyes were bright, probably with wine. As I was looking at him, he suddenly turned, and asked me, "do you think I'm handsome, Miss Eyre?"The answer somehow slipped from my tongue before I realized it: 'No, sir.""ah, you really are unusual! You are a quiet, serious little person, but you can be almost rude.""Sir, I'm sorry. I should have said that beauty doesn't matter, or something like that,""no, you shouldn't! I see, you criticize my appearance, and then you stab me in the back! You have honesty and feeling. There are not many girls like you. But perhaps I go too fast. Perhaps you have awful faults to counterbalance your few good pointsI thought to myself that he might have too. He seemed to read my mind, and said quickly," yes, you're right. I have plenty of faults. I went the wrong way when I was twenty-one, and have never found the right path again. I might have been very different. I might have been as good as you, and perhaps wiser. I am not a bad man, take my word for it, but I have done wrong. It wasn't my character, but circumstances which were to blame. Why do I tell you all this? Because you're the sort of person people tell their problems and secrets to, because you're sympathetic and give them hope."It seemed he had quite a lot to talk to me. He didn't seem to like to finish the talk quickly, as was the case for the first time."Don't be afraid of me, Miss Eyre." He continued. " You don't relax or laugh very much, perhaps because of the effect Lowood school has had on you. But in time you will be more natural with me, and laugh, and speak freely. You're like a bird in a cage. When you get out of the cage, you'll fly very high. Good night."41: at the beginning miss Eyre 's impressions of Mr. Rochester were all except[A] busy[B] sociable[C] friendly[D] changeable42, in "……and all my knowledge of him was limited to occasional meetings about the house,…".the word “about” means[A] around[B] on[C] outside[D] concerning.43. why did Mr. Rochester say " ……and then you stab me in the back!" （7th para.）?[A] because Jane had intended to kill him with a knife.[B] because Jane had intended to be more critical.[C] because Jane had regretted having talked to him.[D] because Jane had said something else to correct herself.44, from what Mr. Rochest told Miss Eyre, we can conclude that he wanted to[A] Tell her all his troubles [B] tell her his life experience.[C] change her opinion of him [D] change his circumstances45, at the end of the passage, Mr. Rochester sounded[A] rude[B] cold[C] friendly[D] encouraging.TEXT DThe ideal companion machine-the computer- would not only look, feel, and sound friendly but would also be programmed to behave in a pleasant manner. Those qualities that make interaction comfortable, and yet the machine would remain slightly unpredictable and therefore interesting. In its first encounter it might be somewhat hesitant, but as it came to know the user it would progress to a more relaxed and intimate style. The machine would not be a passive participant but would add its own suggestions, information, and opinions; it would sometimes take the initiative in developing or changing the topic and would have a personality of its own.Friendships are not made in a day, and the computer would be more acceptable as a friend if it imitated the gradual changes that occur when one person is getting to know another. At an appropriate time it might also express the kind of affection that stimulates attachment and intimacy. The whole process would be accomplished in a subtle way to avoid giving an impression of over-familiarity that would be likely to produce irritation. After experiencing a wealth of powerful, well-timed friendship indicators, the user would be very likely to accept the computer as far more than a machine and might well come to regard it as a friend.An artificial relationship of this type would provide many of the benefits that could continue from previous discussions. It would have a familiarity with the user's life as revealed in earlier contact, and it would be understanding and good-humored. The computer's own personality would belively and impressive, and it would develop in response to that of the user. With features such as these, the machine might indeed become a very attractive social partner.46. Which of the following is not a feature of the ideal companion machine?[A] Active in communication[B] Attractive in personality[C] Enjoyable in performance[D] unpredictable in behaviour47. The computer would develop friendships with humans in a （n）——way.[A] quick[B] unpredictable[C] productive[D] inconspicuous48. Which of the following aspects is not mentioned when the passage discusses the benefits of artificial relationships?[A] Being able to pick up an interesting conversation.[B] Being sensitive to earlier contact.[C] Being ready to learn about the person's life.[D] Having a pleasant and adaptable personality.49 Throughout the passage, the author is _____in his attitude toward the computer.[A] favorable[B] critical[C] vague[D] hesitant50. Which might be the most appropriate title of the passage?[A] Artificial Relationships.[B] How to Form Intimate Relationships.[C] The Affectionate Machine. [D] Humans and Computers.Text EThousands of years ago man used handy rocks for his surgical operations. Later he used sharp bon e or horn, metal knives and more recently, rubber and plastic. And that was where we stuck, in sur gical instrument terms, for many years. In the 1960sa new tool was developed, one which was, firs t of all, to be of great practical use to the armed forces and industry, but which was also, in time, t o revolutionize the art and science of surgery.The tool is the laser and it is being used by more and more surgeons all over the world, for a very l arge number of different complaints. The word laser means: Light Amplification by Stimulated E mission of Light. As we all know, light is hot; any source of light---from the sun itself down to a h umble match burning---will give warmth. But light is usually spread out over a wide area. The ligh t in a laser beam, however, is concentrated. This means that a light with no more power than that produced by an ordinary electric light bulb becomes intensely strong as it is concentrated to a pinpo int-sized beam.Experiments with these pinpoint beams showed researchers that different energy sources produce beams that have a particular effect on certain living cells. It is now possible for eye surgeons to op erate on the back of the human eye without harming the front of the eye, simply by passing a laser beam right through the eyeball. No knives, no stitches (刀口缝合), no unwanted damage—a true surgical wonder.Operations which once left patients exhausted and in need of long periods of recovery time now le ave them feeling relaxed and comfortable. So much more difficult operations can now be tried. The rapid development of laser techniques in the past ten years has made it clear that the future is l ikely to be very exciting. Perhaps some cancers will be treated with laser in a way that makes surg ery not only safer but more effective. Altogether, tomorrow may see more and more information c oming to light on the diseases which can be treated medically.51.Up until the 1960s the instruments used to perform surgical operationswere ___ .[A] fashionable [B] extraordinary [C] special [D] basic52.After the development of the laser in the 1960s, we find that ___ .[A] medical help became available for industrial workers.[B] the study of art went through a complete revolution.[C] more and more surgeons began using surgical instruments.[D]. man‘s whole approach to surgery changed completely53.The laser beam is so strong because ___ .[A] it is composed of a concentrated beam of light[B] its heat is increased by the heat of the sun[C] it can be plugged into an ordinary light fitting[D] it sends out heat in many different directions54.Surgeons can now carry out operations which ___ .[A] can be performed successfully only on the human eye[B] result in long periods of recovery time for patients[C] are made much more complicated by using the laser beam[D] result in very little damage to the patients themselves55.The rapid development of laser techniques has meant that ___ .[A] in another ten years we shall be able to cure cancer[B] surgery is likely to improve considerably[C] we shall be able to treat all the diseases we suffer from[D] we are now able to treat most forms of cancerPart III Cloze (20 scores; one for each)Directions: There are 20 blanks in the following passage. For each blank there are four choices marked A), B), C) and D) on the right side of the paper. You should choose the ONEthat best fits into the passage. Then mark the corresponding letter on Answer Sheetwith a single line through the centre.In the United States, older people rarely live with their adult children. But in many other cultures children are expected to care (56) their aged parents. In some parts of Italy, the percentage of adult children who (57) with their parents (58) 65 to 70 percent. In Thailand, too, children are expected to care for their elderly parents; few Thai elderly live (59).56. [A] about [B] after [C] for [D] over57. [A] reside [B] recite [C] redeem [D] rebel58. [A] amasses [B] amounts [C] attains [D] reaches59. [A] lone [B] alone [C] lonesome [D] lonelyWhat explains these differences in living arrangements (60) cultures? Modernization theory (61) the extended family household to low levels of economic development. In traditional societies, the elderly live with their children in large extended family units for economic reasons. But with modernization, children move to urban areas, leaving old people (62) in (63) rural areas. Yet modernization theory cannot explain why extended family households were never common in the United States or England, or why families in Italy, which is fully modernized, (64) a strong tradition of intergenerational living. Clearly, economic development alone cannot explain (65) living arrangements.60. [A] over [B] across [C] within [D] above61. [A] associated [B] linked [C] united [D] combined62. [A] aside [B] after [C] over [D] behind63. [A] isolated [B] segregated [C] idealized [D] secluded64. [A] maintain [B]promote [C]reserve [D]support65. [A] appointed [B] assigned [C]preserved [D] preferredAnother theory associated intergenerational living arrangements with inheritance patterns. In some cultures, the stem family pattern of inheritance (66). (67) this system, parents live with a married child, usually the oldest son, who then (68) their property when they die. The stem family system was once common in Japan, but changes in inheritance laws, (69) broader social changes brought (70) by industrialization and urbanization, have (71) the (72). In 1960 about 80 percent of Japanese over 65 lived with their children; by 1990 only 60 percent did—a figure that is still high(73) U. S. standards, but which has been (74) steadily. In Korea, too, traditional living arrangements are (75): the percentage of aged Koreans who live with a son declined from 77 percent in 1984 to 50 percent just 10 years later. Although most elderly Koreans still expect to live with a son, their adult children do not expect to live with their children when they grow old.66. [A] controls [B] overtakes [C] predominates [D] overwhelms67. [A] at [B] under [C] by [D] over68. [A] delivers [B] conveys [C]conceives [D] inherits69. [A] as well as [B] might as well [C] as well [D] well as70. [A] off [B] up [C] around [D] about71. [A] undermined [B] decreased [C] diminished [D] defeated72. [A] authority [B] usage [C] habit [D] tradition73. [A] by [B] on [C] with [D] in74. [A] inclining [B] reclining [C] declining [D] reducing75. [A] receding [B] removing [C] invading [D] erodingPART IV WRITING (15 scores)Directions: For this part , you are required to write a composition of about 200 words . You must b ase your composition on the following outline:Recently a Beijing information company did a survey of student life among more than 700 students in Beijing, Guangzhou, Xi'an, Chengdu, Shanghai, Wuhan, Nanjing, and Shenyang . The results have shown that 67 percent of students think that saving money is a good habit while the rest believe that using tomorrow's money today is better, what do you think?Write on your answer sheet a compositions of about 200 words.●You are to write in three parts.●In the first part, state specifically what you opinion is.●In the second part, support your opinion with appropriate detail.●In the last part, bring what you have written to a natural conclusion or a summary.●You should supply an appropriate title for you composition.Marks will be awarded for content, organization, grammar and appropriateness. Failure to follow the instructions may result in a loss of marks.。
精编版-2017年广西桂林电子科技大学信号系统与电路(B)考研真题A卷
2017年广西桂林电子科技大学信号系统与电路(B)考研真题A 卷信号与系统分析部分（75分）说明:本试题中)(t U 、)(n U 分别表示连续时间、离散时间单位阶跃信号；)(t δ、)(n δ分别表示单位冲激、单位样值信号。
一、单项选择题（每小题3分，共30分）1. 以下方程描述的系统，哪个是因果稳定的？（A ）()()()21y n y n f n --= （B ）()()()1-+=n f n f n y （C ）()()t tf t y = （D ）()()t f t y 2= 2. 以下哪一个等式是成立的？（A ）()()t t -=δδ （B ）()()t t δδ22= （C ）()1=⎰∞-ττδd t（D ）()()1122-=-⎰-t U dt t δ3. 已知()t f 是实偶信号，()()()t f t f t y *=，那么 。
（A ）()t y 是偶函数，且()00≥y （B ）()t y 是奇函数, 且()00≥y （C ）()t y 是偶函数，且()00<y （D ）()t y 是奇函数, 且()00<y 4. 信号(),jn tn f t et π∞=-∞=-∞<<∞∑，那么 。
（A ）()t f 是周期信号，但周期未知 （B ）()t f 是周期信号，且周期π=T （C ）()t f 是周期信号，且周期2=T （D ）()t f 不是周期信号5. 已知信号()t f 的最高频率为200 Hz ，那么对()t f 2进行抽样的奈奎斯特频率为 。
（A ）100 Hz （B ）200 Hz （C ）400 Hz （D ）800 Hz6. 因果信号()t f 的象函数为()22+=-s e s F s ，那么初值()+0f 为 。
（A ）-1 （B ）0 （C ）1 （D ）∞ 7. LTI 因果系统的系统函数为()11+-=s s s H ，那么该系统是 。
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Note: A sequence is called bounded if there exists a positive number M such that
A sequence that is not bounded is called unbouned.
3.A circle is a closed curve lying in one plane, all points of which are equidistant from a fixed point called the center.
4.Two sets A and B are said to be equal if they consist of exacly the same elements, in which case we write A=B. If one of the sets contains and element not in the other, we say the sets are unequal and we write .
Proof: It is clear that an unbounded sequence cannot converge. Therefore, all we need to prove is that a bounded monotonic sequence must converge.
Assume and let L denote the least upper bound of the set of function values. Then for all n, and we shall prove that the sequence converges to L.
(4)x to the minus two thirds(5) complex-valued sequence
(6)the secondcentury, man confined himself to the elementary mathematics, i.e., geometry, trigonometry and algebra, in which only the constants were considered.
Choose any positive number . Since cannotbe an upper bound for all numbers , we must have for some N.…From these inequalities we find that
for all
and this means that the sequence converges to L, as asserted.
桂林电子科技大学
2017年硕士研究生复试考试试题
科目代码:
科目名称:数学专业英语
A卷
注意：答案必须全部写在答题纸上，写在试题上无效；答案要标注题号，答题纸要填写姓名和考号，并标注页码与总页数；交卷时，将答题纸与试题一起装入试卷袋，密封签字。
英译汉
1.(1) straightline(2)eveninteger(3) positivenumber
If , the proof is similar, the limit in this case being the greatest low bound of the set of function values.