2017山东科技大学考研828电路试题

树德中学高2017级二诊模拟考试英语试题

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2017考研英语一阅读答案 答案：21-25 ACDDC 21. 答案【A】explain American’s tolerance of current security checks. 解析：本题目为例证题，考察论点与论据。根据题干关键词the crash of Egypt Air Flight 804定位到第二段第二句。例证题中的例子为论据，所要找的答案为论点，而论点在论据之 前，因此该题目的答案是第二段的第一句话。二段首句说的是美国人愿意忍受长时间的安全 检查。正确答案A的American’s tolerance是原文Americans are willing to tolerate的原词复现，current security checks是原文的time-consuming security 的同义转化。干扰项B 的urgency to strengthen security worldwide，原文未提及worldwide，属于扩大范围;选项C的major U.S. major airports属于具体信息的干扰;选项D的privacy 隐私并未提及，是常识性干扰。 22. 答案【C】An increase in the number of travelers. 解析：本题目为原因细节题。根据题干中的long waits at major airports定位到原文第三段的第二句，原文的resulted in 与题干中的contributed to是同义转化，所以定位内容就 是提升的安全措施以及航空旅游的增加。正确答案C的an increase in the number of travelers 是原文 a rise in airline travel的同义替换。干扰项A的carry-on bags是在第四段的最后一句出现的，非定位句内容;选项B的TSA efficiency也出现在第四段;选项D的unexpected secret checks未提及。

山东科技大学数学专业考研数学分析真题

一．求极限（20分）： 1、曲线)(x f y =与x y sin =在原点相切，证明：2)2(lim =∞→n nf n 。 2、求极限：??? ??-→x x x x cot 11lim 0。 3、求5020)]cos(1[lim x dt t x x ?-+→。 4、求极限???? ? ?++++++∞→32323212111lim n n n n n n n n Λ。 二．导数及高阶导数（20分）： 1、设35x x x y ++=，求'y 。 2、已知x x y -=14 ，求)4()(>n y n 。 3、由方程?-=+x y dt t y x 022)cos(确定了y 是x 的函数，求dx dy 。 4、设)()('),('t f t tf y t f x -==，)('''t f 存在且)(''t f 不为零，求三阶导数33dx y d 。 三．证明题（17分）： 1、设)(x f 在)0(],[>a b a 上连续，在),(b a 内可导。 证明：存在),(,b a ∈ηξ 使)('2)('ηη ξf b a f += 。 2、证明：方程)2(11≥=+++-n x x x n n Λ在)1,0(内必有惟一实根n x ，并求n n x ∞→lim 。 四．积分计算（18分）： 1、计算不定积分：?+2) 1(x e dx 。 2、计算定积分：dx e x ?-2ln 01。 3、讨论反常积分 )0()1)(1(02>++?∞+ααx x dx 的敛散性，若收敛，求出其值。

五． 解下列各题（30分） 1、设22 ()z f x y =+ , 其中f 具有二阶导数, 求22z x ??, 2z x y ???。 2、计算积分 (),l x y ds +? :l 顶点为(0,0), (1,0), (1,1)的三角形边界。 3、计算积分 xdydz ydzdx zdxdy ∑ ++??，∑为锥面22y x z +=在平面 4=z 下方的部分，取外法线方向。 六． 解下列各题（20分） 1、计算积分 0 (0)ax bx e e dx b a x --+∞->>?。 2、假设(,)(,)f x y x y x y ?=-，其中(,)x y ?在点（0，0）的邻域中连续，问 1）(,)x y ?满足什么条件时，(,)f x y 在（0，0）点偏导数存在； 2）(,)x y ?满足什么条件时，(,)f x y 在（0，0）点可微。 七．（13分） 求椭圆线2211 x y x y z ?+=?++=?上长半轴和短半轴的长。 八．（12分） 1、证明：当1≥t 时，不等式2 ln(1)t t +< 成立。 2、设 )1ln(1)(223x n n x u n +=，Λ,2,1=n .证明函数项级数∑∞=1)(n n x u 在]1,0[上一致收敛，并讨论其和函数在]1,0[的连续性、可积性与可微性。

2017年考研英语一真题-高清版含答案

2017年考研英语一真题-高清版含答案 Section I Use of English Directions: Read the following text.Choose the best word(s)for each numbered blank and mark A,B,C or D on the ANSWER SHEET.(10points) Could a hug a day keep the doctor away?The answer may be a resounding “yes!”1helping you feel close and2to people you care about,it turns out that hugs can bring a3of health benefits to your body and mind. Believe it or not,a warm embrace might even help you4getting sick this winter. In a recent study5over400healthy adults,researchers from Carnegie Mellon University in Pennsylvania examined the effects of perceived social support and the receipt of hugs6the participants’susceptibility to developing the common cold after being7to the virus.People who perceived greater social support were less likely to come8with a cold,and the researchers9that the stress-reducing effects of hugging10about 32percent of that beneficial effect.11among those who got a cold,the ones who felt greater social support and received more frequent hugs had less severe 12. “Hugging protects people who are under stress from the13risk for colds that’s usually14with stress,”notes Sheldon Cohen,a professor of psychology at Carnegie.Hugging“is a marker of intimacy and helps15the feeling that others are there to help16difficulty.” Some experts17the stress-reducing,health-related benefits of hugging to the release of oxytocin,often called“the bonding hormone”18it promotes attachment in relationships,including that between mothers and their newborn babies.Oxytocin is made primarily in the central lower part of the brain, and some of it is released into the bloodstream.But some of it19in the brain,where it20mood,behavior and physiology.

四川省宜宾市高2017级高三二诊英语试题及答案

宜宾市高2017级第二次诊断测试英语 （考试时间：120分钟满分：150分） 第一部分听力（共两节，满分30分） 做题时，先将答案标在试卷上。录音内容结束后，你将有两分钟的时间将试卷上的答案转涂到答题卡上。 第一节（共5小题；每小题1.5分，满分7.5分） 听下面5段对话。每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。听完每段对话后，你都有10秒钟的时间来回答有关小题 A. By plane. B. By bike. C. By train. 2. Where are the speakers? A. In a bar. B. In a supermarket. C. In a hospital. 3. Why does the man come here? A. He wants to buy something. B. He wants to see the manager. C. He wants to get his money back. 4. What does the woman mean? A. She will go to the party with David. B. She won’t go to the party with anybody. C. She doesn’t want David to go to the party. 5. How much is the radio now? A. 20. B. 25. C. 30. 第二节(共15小题; 每小题1.5分,满分22.5分) 请听下面5段对话或独白,选出最佳选项。 请听第6段材料, 回答第6至第8题。 6. What happened to the man? A. He was given a prize. B. He lost his job. C. He had a leave off. 7. How did the man feel about his boss’s decision? A. He didn’t understand it. B. He understood it very well. C. He thought it completely wrong. 8. What was the man unable to do? A. To use a printer. B. To use a typewriter. C. To use a computer. 请听第7段材料,回答第9至第11题。 9. What’s the man’s advice? A. To keep studying. B. To get a job. C. To have a holiday. 10. What is the woman going to study according to her parents? A. Performance. B. Law. C. Economics. 11. Why does the woman want to work? A. To get enough money. B. To have fun. C. To make friends. 请听第8段材料,回答第12至第14题。 12. What does the man think of the woman’s cooking? A. Excellent. B. Bad. C. So-so. 13. What does the woman advise the man to do? A. Learn how to cook from her.

2017年山东科技大学统计学(数据分析方向)专业人才培养方案

统计学（数据分析方向）专业培养方案 Statistics（Data Analysis Specialty） （门类：理学；二级类：统计学；专业代码：071201） 一、专业培养目标 本专业培养德、智、体、美全面发展，在具备一定的数学、统计学和计算机科学等方面知识的基础上，较全面掌握大数据处理和分析的基本理论、基本方法和基本技术，能够运用所学知识解决实际问题，具备较高的综合业务素质、创新与实践能力，能从事大数据分析、大数据应用开发、大数据系统开发、大数据可视化以及大数据决策等工作，具有较强的专业技能和良好外语运用能力的应用型创新人才，或继续攻读本学科及其相关学科的硕士学位研究生。 二、毕业要求 本专业是一门涉及数学、统计学、计算机科学等多领域的交叉学科。学生主要学习数学、统计学、计算机科学的基本理论和基本知识，打好坚实的数学基础，受到系统而扎实的计算机编程训练，具备较强的数据分析和信息处理能力，能在大数据科学与工程技术领域从事数据分析管理、系统设计开发、大数据处理应用、科学研究等方面的工作，具备综合运用所学知识分析和解决实际问题的能力。 本专业学生培养分为两个主要阶段，第一阶段着重于数据科学理论体系的培养，即发展和完善数据科学理论体系，为数据科学人才培养提供必要的理论和知识基础；第二阶段重视实践能力的培养，即在夯实数据科学理论的基础上，重视培养学生利用大数据的方法解决具体行业应用问题的能力。 本专业毕业生在知识、能力和素质方面的具体要求： 1.具有正确的世界观、人生观和价值观；具有良好的道德品质、高度的社会责任感与职业道德；具有良好的人文社会科学素养。 2.具有良好的人际交往能力和团队协作精神；有较强的自学能力和适应能力。 3.具有良好的数学、统计学和计算机科学基础，掌握数据科学与大数据技术、统计学和计算机科学的基本知识、方法和技能。

2017年考研英语二真题及答案解析

2017年考研英语二真题 Section I Use of English Directions： Read the following text. Choose the best word (s) for each numbered blank and mark A, B, C or D on the ANSWER SHEET. (10 points) People have speculated for centuries about a future without work.Today is no different，with academics，writers，and activists once again 1 that technology is replacing human workers. Some imagine that the coming work-free world will be defined by 2 . A few wealthy people will own all the capital，and the masses will struggle in an impoverished wasteland.. A different and not mutually exclusive 3 holds that the future will be a wasteland of a different sort，one 4 by purposelessness：Without jobs to give their lives 5 ，people will simply become lazy and depressed. 6 today’s unemployed don’t seem to be having a great time. One Gallup poll found that 20 percent of Americans who have been unemployed for at least a year report having depression，double the rate for 7 Americans. Also，some research suggests that the 8 for rising rates of mortality，mental-health problems，and addicting9 poorly-educated middle-aged people is shortage of well-paid jobs. Perhaps this is why many 10 the agonizing dullness of a jobless future. But it doesn’t 11 follow from findings like these that a world without work would be filled with unease. Such visions are based on the 12 of being unemployed in a society built on the concept of employment. In the 13 of work，a society designed with other ends in mind could 14 strikingly different circumstances for the future of labor and leisure. Today，the 15 of work may be a bit overblown. “Many jobs are boring，degrading，unhealthy，and a waste of human potential，” says John Danaher，a lecturer at the National University of Ireland in Galway. These days，because leisure time is relatively 16 for most workers，people use their free time to counterbalance the intellectual and emotional 17 of their jobs. “When I come home from a hard day’s w ork，I often feel 18 ，” Danaher says，adding，“In a world in which I don’t have to work，I might feel rather different”—perhaps different enough to throw himself 19 a hobby or a passion project with the intensity usually reserved for 20 matters. 1. [A] boasting [B] denying [C] warning [D] ensuring 2. [A] inequality [B] instability [C] unreliability [D] uncertainty 3. [A] policy [B]guideline [C] resolution [D] prediction 4. [A] characterized [B]divided [C] balanced [D]measured 5. [A] wisdom [B] meaning [C] glory [D] freedom 6. [A] Instead [B] Indeed [C] Thus [D] Nevertheless 7. [A] rich [B] urban [C]working [D] educated 8. [A] explanation [B] requirement [C] compensation [D] substitute 9. [A] under [B] beyond [C] alongside [D] among 10. [A] leave behind [B] make up [C] worry about [D] set aside 11. [A] statistically [B] occasionally [C] necessarily [D] economically 12. [A] chances [B] downsides [C] benefits [D] principles 13. [A] absence [B] height [C] face [D] course

宜宾市高2017级一诊考试题库英语试题(20200416111300)

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数学分析考研2021复旦与山东科大考研真题库

数学分析考研2021复旦与山东科大考研真题库 一、山东科技大学《603数学分析》考研真题

二、复旦大学数学系 第1部分数项级数和反常积分

第9章数项级数 一、判断题 1．若收敛，则存在．[重庆大学2003研] 【答案】错查看答案 【解析】举反例：，虽然，但是 发散． 2．若收敛，，则收敛．[南京师范大学研] 【答案】错查看答案 【解析】举反例：满足条件，而且很容易知道 但是发散，所以发散． 二、解答题 1．求级数的和．[深圳大学2006研、浙江师范大学2006研] 解： 2．讨论正项级数的敛散性．[武汉理工大学研]

解：由于，所以当a＞1时收敛，当0＜a＜1时发散；当a＝1时，由于 ，故发散． 3．证明：收敛．[东南大学研] 证明：因为所以 又因为 而收敛，故收敛． 4．讨论：，p∈R的敛散性．[上海交通大学研] 证明：因为为增数列，而为减数列，所以．从而

所以．于是当p＞0时，由积分判别法知收敛，故由Weierstrass判别法知 收敛：当p＝0时，因为发散，所以发散：当p＜0时， 发散． 5．设级数绝对收敛，证明：级数收敛．[上海理工大学研] 证明：因为绝对收敛，所以．从而存在N＞0，使得当n＞N 时，有，则有 ，故由比较判别法知级数收敛． 6．求．[中山大学2007研] 解：由于，所以绝对收敛． 7．设，且有，证明： 收敛．[大连理工大学研] 证明：因为，所以对任意的ε，存在N，当n＞N时，有

， 即 取ε充分小，使得，即．因为，所以单调递减，且 现在证明．因为，即则 ． 所以对任意的ε，存在N，当n＞N时，有．对任意的0＜c-ε＜r，有 所以存在N，当n＞N时，，则 因此 ，

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