第三次作业题

合集下载

社会保障学网上第三次作业题目及其答案

社会保障学第三次作业单选题（每小题2分，10题，共20分）（总分20.00）1.根据国际劳工公约103号《生育保护公约》规定：产假津贴的最低标准为本人工资的（A）。

（2.00分）A. 67%B. 50%C. 100%D. 80%2.1884年，（C）颁布了《劳工伤害保险法》，这是世界上第一部工伤保险法。

（2.00分）A. 美国B. 法国C. 德国D. 英国3.最早提出“绝对贫困”概念的是英国社会学家（B）。

（2.00分）A. 阿尔柯克B. 布恩C. 凯恩斯D. 贝弗里奇4.在工伤保险制度中，实行普遍保障模式的代表是（C）。

（2.00分）A. 德国B. 法国C. 英国D. 美国5.亚洲国家最早建立生育保险项目的是（B）。

（2.00分）A. 新加坡B. 日本C. 韩国D. 中国6.通常被称为“最后的安全网”的社会保障制度是（D）。

（2.00分）A. 社会福利B. 社会优抚C. 社会保险D. 社会救助7.世界上历史最悠久、实施范围最广的社会保障制度是（B）。

（2.00分）A. 失业保险B. 工伤保险C. 医疗保险D. 养老保险8.2000年国际劳工大会第88届年会将最低产假标准从1952年的12周增加到了（B）。

（2.00分）A. 40周B. 14周C. 15周D. 20周9.我国目前女职工生育休假时间为（B）。

（2.00分）A. 98天B. 90天C. 84天D. 56天10.生育保险享受保险的时间短而固定，一般为（C）。

（2.00分）A. 2年B. 5～6周C. 12～14周D. 30天多项选择题（每小题2分，15题，共30分）（总分30.00）1.社会救助的特征有（BCD）。

（2.00分）A. 救助权利和缴费义务相结合B. 享受社会救助是公民权利C. 受助者需要接受家计调查D. 国家是责任主体2.目前我国最低生活保障标准的计算方法主要有（ABCD）。

（2.00分）A. 其他方法B. 收入比例法C. 市场菜篮子法D. 恩格尔系数法3.工伤保险的一般原则包括（ABCD ）。

英语第三次作业

正确获得1.00分中的1.00分--What is your eldest sister like? -- ______________.选择一项：a. She is tallb. She is at homec. She is happyd. She is ill反馈正确答案是：She is tall题目2正确获得1.00分中的1.00分--- I was worried about my math, but Mr. Brown gave me an A. --- _________选择一项：a. Don't worry about it.b. Good luck to you!c. Mr. Brown is very good.d. Congratulations! That's a difficult course.反馈正确答案是：Congratulations! That's a difficult course.正确获得1.00分中的1.00分-- Thanks for inviting me, John, but I've already made other plans. -- _________. Maybe another time.选择一项：a. That's goodb. Great! I really had a good timec. I hope you enjoy itd. Oh! I'm sorry to hear that反馈正确答案是：Oh! I'm sorry to hear that题目4正确获得1.00分中的1.00分- Hello, I'm David Chen. Nice to meet you. - _______选择一项：a. Very nice.b. Yes.c. Nice to meet you too.d. Are you?反馈题目5正确获得1.00分中的1.00分---Can you go out with us for dinner this evening?---____________选择一项：a. I’m ill, so I shouldn’t go out for dinner.b. No, I really don’t like being with youc. No, I already have plans.d. Thanks a lot, but I’m busy tonight.反馈正确答案是：Thanks a lot, but I’m busy tonight.题目6正确获得1.00分中的1.00分- What would you like to drink? - _____________________选择一项：a. Thanks a lot.b. I'm sorry.c. Be quick.d. A glass of milk, please.反馈题目7正确获得1.00分中的1.00分--- I'm terribly sorry that I've spilled some coffee on the carpet. --- _______.选择一项：a. That's rightb. It doesn't matterc. Don't mention itd. Sorry反馈正确答案是：It doesn't matter题目8正确获得1.00分中的1.00分--Why not join us in the game? --______________.选择一项：a. No, you do the sameb. Don't mention itc. Oh, that's all rightd. OK! I'm coming反馈正确答案是：OK! I'm coming题目9正确获得1.00分中的1.00分-- I wish you success in your career. -- _______选择一项：a. Yes, please.b. You are welcome.c. You think so.d. The same to you.反馈正确答案是：The same to you.题目10正确获得1.00分中的1.00分-You've been busy, haven't you? -______________________选择一项：a. Yes, I've been working hard on my paper.b. I was busy last week.c. I'd like to get busy like our teachers .d. I will get busy with my English studies .正确答案是：Yes, I've been working hard on my paper.题目11正确获得1.00分中的1.00分---I’ve got your invitation.---Oh, good.____选择一项：a. I’ll take it.b. Thanks a lot.c. Can you come?d. May I help you?反馈正确答案是：Can you come?题目12正确获得1.00分中的1.00分— Is _______ here? -- No, Bob and Tim have asked for leave.选择一项：a. anybodyb. everybodyc. nobodyd. somebody正确答案是：everybody题目13正确获得1.00分中的1.00分- Nice to see you again, Mr. Smith. How are you? - _________选择一项：a. Fine. Thank you. And you?b. This way, please.c. I miss you.d. Are you OK?反馈正确答案是：Fine. Thank you. And you?题目14正确获得1.00分中的1.00分--- Could you help me with my physics, please？--- ________.选择一项：a. Sorry I can't. I have to go to a meeting right nowb. No, no wayc. No, I couldn'td. No, I can't正确答案是：Sorry I can't. I have to go to a meeting right now题目15正确获得1.00分中的1.00分－Customer: Why is it so hard to get fast service in this store? －Waiter: ______选择一项：a. I don’t think it’s hard.b. You’ll get it ne xt time.c. Don’t be too particular about it.d. I’m really sorry about that.反馈正确答案是：I’m really sorry about that.题目16正确获得1.00分中的1.00分--- How do you do? Glad to meet you. --- _________选择一项：a. How are you? Thank you!b. How do you do? Glad to meet you, too.c. Fine. How are you?d. Nice. How are you?正确答案是：How do you do? Glad to meet you, too.题目17正确获得1.00分中的1.00分- I feel sick. - _______. - I'm not sure, but I have got a bad headache.选择一项：a. I'm sorry to hear that.b. How are you feeling now?c. Do you have a high temperature?d. How long have you been away?反馈正确答案是：Do you have a high temperature?题目18正确获得1.00分中的1.00分－M: ______________ －W: If it weren't for the climate, I'd like it here very much.选择一项：a. I hope you're enjoying your stay here.b. Have you been familiar with Dallas now?c. What is the weather like today?d. Are you feeling OK?正确答案是：I hope you're enjoying your stay here.题目19正确获得1.00分中的1.00分― Would you mind if we asked you for some advice? ― ________________选择一项：a. What do you want?b. Yes. Please go ahead.c. Thank you so much.d. That's all right.反馈正确答案是：That's all right.题目20正确获得1.00分中的1.00分-- Thank you for your nice gifts. --_____________________选择一项：a. No thanks.b. I'm sorry to hear that.c. I'm glad you like it.d. It's very kind of you.反馈正确答案是：I'm glad you like it.题目21正确获得1.00分中的1.00分－W: I've come to say goodbye. I'm flying home on Sunday afternoon. －M: Well, _______选择一项：a. help yourself.b. will your parents meet you at the airport?c. I’m longing to see you.d. have a safe trip and remember me to your parents.反馈正确答案是：have a safe trip and remember me to your parents.题目22正确获得1.00分中的1.00分--- Could I borrow your car for a few days? --- ________________.选择一项：a. Yes, you may borrowb. Sure, here your are. Enjoy your journeyc. Yes, go ond. It doesn't matter反馈正确答案是：Sure, here your are. Enjoy your journey题目23正确获得1.00分中的1.00分- How much is that meat, please? - _____________________选择一项：a. I like it very much.b. Ten o'clock.c. I don't like.d. Ten yuan a kilo.反馈正确答案是：Ten yuan a kilo.题目24正确获得1.00分中的1.00分--Do you dance? --Yes, I do. --__________? --Every weekend.选择一项：a. How often do you go dancingb. How hard do you practicec. How long do you practice itd. How much do you pay for it反馈正确答案是：How often do you go dancing题目25正确获得1.00分中的1.00分— Mr. Chairman, could I raise a point about the plan?—_____________.选择一项：a. Yes, Dr Chosukb. I think so, eitherc. Yes, I hope notd. No, I have no idea反馈正确答案是：Yes, Dr Chosuk题目26正确获得1.00分中的1.00分--- What day is it today? --- _________选择一项：a. It's a fine day today.b. It's March.c. It's March 6.d. It's Monday.反馈正确答案是：It's Monday.题目27正确获得1.00分中的1.00分-- Thank you ever so much for the present you sent me. -- ______.选择一项：a. Please don't say sob. No, thanksc. It's not so good, I thinkd. I'm glad you like it反馈正确答案是：I'm glad you like it题目28正确获得1.00分中的1.00分-- May I see your tickets, please? -- _______选择一项：a. Thank you very much.b. It's very kind of you.c. No, I am not available.d. Here they are.反馈正确答案是：Here they are.题目29正确获得1.00分中的1.00分-If you need me, jut let me know. -I will,___________.选择一项：a. that's all rightb. not at allc. all rightd. thank you反馈正确答案是：thank you题目30正确获得1.00分中的1.00分- I'm sorry to have kept you waiting. - _____________________选择一项：a. It's nice of you.b. Forget it.c. My pleasure.d. It doesn't matter.反馈正确答案是：It doesn't matter.。

19秋《工程经济学》第三次作业

一、单项选择题（本大题共15小题，每小题1分，共15分）1、影子价格实质上是（ C ）。

A. 市场价格B. 企业实际的货物交易价格C. 货物的真实价值D. 多次交易价格的平均值2、最有可能不需做社会评价的项目是 ( A )。

A. 住宅B. 交通运输C. 油田开发D. 学校3、国民经济费用中的直接费用是指 ( B )。

A. 由项目产出物直接生成，并在项目范围内计算的经济效益B. 项目使用投入物所形成，并在项目范围内计算的费用C. 项目对国民经济作出的贡献D. 国民经济为项目付出的代价4、某项目的财务评价可行,而国民经济评价不可行,则该项目（ B ）。

A. 应予通过B. 应予否定C. 应采取经济优惠措施D. 视项目财务效果高低再予决定5、国民经济评价与财务评价最根本的区别在于（ D ）。

A. 财务评价与国民经济评价使用的参数不同B. 财务评价与国民经济评价的方法不同C. 财务评价与国民经济评价的费用与效益不同D. 财务评价与国民经济评价的角度不同，财务评价立足于企业自身的角度，而国民经济评价是从国家整体的角度6、某建设项目设计的年生产能力为400件，每件产品的价格为5000元，每件产品的变动成本为2000元，每件产品的纳税500元，年固定成本40万元，则盈亏平衡点产量为（ B ）件。

A. 133B. 160C. 80D. 1007、敏感因素对项目经济评价指标产生（ C ）敏感性时会给项目带来较大风险。

A ．正强B ．正弱C ．负强D ．负弱8、一个工业建设项目的盈亏平衡产量越低，则该项目承受风险的能力越( B )。

A ．小 B. 大 C. 不变 D. 等于零9、在敏感分析中，下列因素最敏感的是（ A ）。

A. 产品价格下降30%，使NPV=0B. 经营成本上升50%，使NPV=0C. 寿命缩短80%，使NPV=0D. 投资增加120%，使NPV=010、盈亏临界点产量的计算公式为 A 。

A ．盈亏临界点产量=单位变动成本单价固定成本-B ．盈亏临界点产量=单位变动成本单价总成本-C ．盈亏临界点产量=单位成本单价固定成本-D ．盈亏临界点产量=单位成本单价总成本-11、某企业每年的固定成本为1800万元，产品价格300元，单位产品可变成本为200（包括销售税金及附加）元，则盈亏平衡点的产量为 B 单位。

西南交大-铁路信号基础-第三次作业

本次作业是本门课程本学期的第3次作业，注释如下：请各位同学认真思考，按时完成作业。

一、单项选择题(只有一个选项正确，共4道小题)1. S700K电动转辙机的第一级降速是由（）实现。

(A) 摩擦联结器(B) 齿轮组(C) 滚珠丝杠(D) 保持连接器你选择的答案： B [正确]正确答案：B解答参考：2. 该继电器线圈图形表示（）类型的继电器(A) 无极继电器(B) 偏极继电器(C) 整流继电器(D) 时间继电器你选择的答案： A [正确]正确答案：A解答参考：3. 该继电器线圈图形表示（）类型的继电器(A) 无极继电器(B) 偏极继电器(C) 整流继电器(D) 时间继电器你选择的答案： [前面作业中已经做正确] [正确]正确答案：D解答参考：4. 该继电器线圈图形表示（C）类型的继电器。

(A) 无极继电器(B) 偏极继电器(C) 缓放继电器(D) 时间继电器正确答案：C解答参考：二、不定项选择题(有不定个选项正确，共4道小题)5. 继电器按照动作原理分类，可以分为（）[不选全或者选错，不算完成](A) 电磁继电器(B) 感应继电器(C) 热力继电器(D) 固态继电器正确答案：A B C D解答参考：6. 继电器的吸起和落下是依靠继电器的（）特性完成的[不选全或者选错，不算完成](A) 牵引特性(B) 机械特性(C) 时间特性(D) 电气特性正确答案：A B解答参考：7. 继电器的安匝是（）和（）的乘积[不选全或者选错，不算完成](A) 电流(B) 电压(C) 线圈匝数(D) 功率正确答案：A C解答参考：8. 继电器的安全系数是（）和（）之比[不选全或者选错，不算完成](A) 额定值(B) 释放值(C) 工作值(D) 吸起值你选择的答案： A C [正确]正确答案：A C解答参考：（注意：若有主观题目，请按照题目，离线完成，完成后纸质上交学习中心，记录成绩。

在线只需提交客观题答案。

)三、主观题(共20道小题)9.有极继电器按磁路结构来分类可分为串联式、并联式和桥式三种10.安全型继电器的接点符合故障-安全原则11.应用继电器构成的各种控制表示电路，统称继电电路12.简述选择继电器的一般原则参考答案：首先必须对继电器所控制的对象一一被控回路的性质、特点以及对继电器的要求等都要有周密地考察和透彻地了解。

自考网络教育大学英语2作业题及解析

2021年9月份考试大学英语（2）第三次作业一、填空题（本大题共10分，共 10 小题，每题 1 分）1. When the police broke into the door, they found him (die) ( ) on the floor.2. The pirate (海盗) chief commanded that the prisoners (俘虏) (shoot) ( ).3. I gave him the magazine, but demanded that he (return) ( ) it to me in a week.4. When my sister phoned me, I could not hear (clear) ( ) what she was saying.5. —What do you think of the book?—Oh, excellent. It’s worth (read) ( ) a second time.6. It was ordered that no smoking (allow) ( ) in the library. (should) be allowed7. Only when one loses health (do) ( ) one know its value.8. By the end of this month, we surely will have found a ( ) (satisfy) solution to the problem.9. The doctor asked the old man to give up (smoke) ( ) because of his bad health.10. All of a (suddenly) ( ), she began to laugh.二、写作题（本大题共90分，共 3 小题，每题 30 分）1. Instructions:建议你在30分钟内，依照下面所给的题目和提纲用英语写出一篇很多于80词的短文。

大学英语第三次考核作业

江苏开放大学形成性考核作业学号2016020000025姓名周宇峰完成日期2016年X月X日课程代码110004课程名称大学英语A（专）评阅教师（教师填写）得分（教师填写）评阅时间2016年X月X日第 3 次任务共 4 次任务江苏开放大学大学英语（A）（专）形成性考核 3答题纸I. 选择填空（每小题1 分，共10 分）1 2 3 4 5 6 7 8 9 10B DC B C C B C C II. 阅读理解（每小题2 分，共40 分）1 2 3 4 5 6 7 8 9 10C C A B C C A B C C11 12 13 14 15 16 17 18 19 20B B D D A A A AC C III. 完成句子（每小题3 分，共30 分）1. Available in that shop2. So dirty that i have to wash it3. For a variety of reasons4. No matter how long it takes5. Cellphones do harm to brains6. Commit himself to working for peace7.will soon get used to it8.contribute to this discussion9. Be involved in important decisions10. With regard to life and deathIV. 段落翻译（一题，共20 分）在20世纪60年代，贝尔实验室开发的技术，可以支持的蜂窝网络的设计。

然而，在联邦通信委员会，联邦通讯委员会，以开发一个蜂窝网络在1971。

这两个都想赢得比赛，对手在1973做出了一个大胆的、无礼的举动！江苏开放大学大学英语（A）（专）形成性考核 3试题I. Choose the choice that best fits into the blank.（每小题 1 分，共 10 分）1. No matter what Chinese banquet you ______, it is important to be punctual.A. attendB. attend toC. attendsD. attending2. Huangshan Mountain ___D___ in Huangshan, Anhui Province.A. situatesB. situatedC. situatingD. is situated3. With a long history of more than 2,000 years, the Great Wall is now considered to be one of the ____C__ wonders in the world.A. greatB. greaterC. greatestD. most great4. At last he found the key he ___B___.A. has lostB. had lostC. lostD. loses5. The number of the pupils ______.A. has increasedB. have increasedC. are increasedD. is increased6. His Selected Poems ___C___ in 1955.A. was ﬁrst publishedB. has been ﬁrst publishedC. were ﬁrst publishedD. had ﬁrst been published7. All the __C____ in the hospital will get a rise tomorrow.A. women-doctorsB. woman doctorsC. women doctorsD. doctors of women8. He wants nothing but a house of ____B__.A. his ownB. himselfC. his fatherD. his own house9. The couple looked at ______ and accepted the salesman’s offer.A. one anotherB. each otherC. themselvesD. them10. After ___C___ breakfast, we had ______ discussion.A. the, aB. a, theC. /, aD. a, theII. Reading Comprehension.（每小题 2 分，共 40 分）Passage 1Mobile phones are the items that a lot of people are having today. However, do we really need to have a mobile phone by our side?We could start with the advantages of mobile phones. There are many things that we could do with mobile phones. With the advancement of technology, more and more features are being added to the mobile phones which make them more useful. In addition to making calls, mobile phones also support a wide variety of other services such as text messaging, email, Internet access, business applications, gaming and photography. We can bring them everywhere, and can be reached by others anytime. They make the world smaller, bringing people together no matter where they are.But we could have some risks when using our mobile phones. We may have accidents whenwe use them while driving. Some studies show that mobile phones can do harm to our bodies; and materials in mobile phones could damage our environment.Since there are so many risks, why do we still have mobile phones? This is because these risks or disadvantages can be overcome. For example, while we are driving we can easily pull up our car if we really need to use the phone. Mobile phone manufacturers are reducing the radiation of mobile phones to avoid health risks.Though there are both pros and cons of using mobile phones, we could easily see that there are more advantages than disadvantages. Moreover, mobile phones are becoming cheaper, which might be another reason why mobile phones are increasingly used today.1. Which of the following functions is NOT mentioned in the passage?A. Text messaging.B. Camera.C. GPS.2. What risks might mobile phones cause?A. Traffic accidents and health problems.B. Environmental damage.C. Both A and B.3. What are mobile phone manufacturers doing to prevent mobile phone users from health risks?A. They are reducing the radiation of mobile phones.B. They are trying to persuade people to use mobile phones less.C. They are developing new models of mobile phones.4. Why do people still use mobile phones despite their disadvantages?A. Because people don’t believe that mobile phones have any disadvantages.B. Because the disadvantages of mobile phones can be avoided.C. Because people cannot live without mobile phones.5. According to the last paragraph, why are mobile phones increasingly being used today?A. They are safer.B. They have more functions.C. They are becoming cheaper.Passage 2Chinese Young Volunteers Association (CYVA) was founded in 1994 by young people who are willing to devote themselves to social services. As a national voluntary non-profit organization, the Association improves the overall quality of youth and contributes to the general progress of economic and social development.Up to now, the association has carried out a series of volunteer activities. Sunshine Dancers is a non-profit program which was started in the Muslim primary school by the association. By hiring professional dance teachers, the association helps children from poor families to realize their dancing dream for free. Another major program run by CYVA is Protecting and Promoting the Rights of China’s Young Migrants（保护并促进青年农民工权益工程）. It aims to improve education for migrant youth in order to prevent their early entry into the labor force. Teams of university volunteers will be recruited and trained to provide after-school tutoring to junior high students from migrant schools.6. What does CYVA stand for?A. Chinese Young Volunteers AssociationB. China Youth Volunteer AssociationC. China Youth Volunteering Association7. When was CYVA founded?A. In 1994.B. In 1996.C. In 1998.8. Who founded CYVA?A. A group of local teachers.B. Young people who are willing to devote themselves to social services.C. The local government.9. What is the goal of CYVA?A. To improve the overall quality of youth.B. To contribute to the general progress of economic and social development.C. Both A and B.10. What are the programs carried out by CYVA?A. Sunshine Dancers.B. Protecting and Promoting the Rights of China’s Young Migrants.C. Both A and B.Passage 3Mr Brown was going away for a week. Before he left, he said to his son, “if anyone asks for me, you can tell him that your father has been out for doing something, and will be back in a week, then be sure to ask him to sit down for a cup of tea.”“OK, Dad,” said his son. But he was afraid his son couldn’t remember this, he wrote these words down on a piece of paper and gave it to him. His son put it into his small pocket, took it out and looked at it every now and then.Four days passed, but no one came to see his father. The boy thought that there was no man to come and that the piece of paper was of no more use for him, so he burnt it that evening.The next afternoon, someone knocked at the door. The boy opened it. A man was standing at the door and said, “Where is your father?” The boy put his hand into his pocket at once and looked for the piece of paper. He could not find it. He suddenly remembered he had burnt it, so he shouted, “No more.”The man was very surprised. He asked, “No more? I met your father last week. When did it happen?”“Burnt yesterday evening.”11. Mr. Brown told his son that __________________.A. he would be away from home for four daysB. he would be back in seven daysC. he would be back in a monthD. he liked a cup of tea12. Mr. Brown wrote the words down on __________________.A. the wallB. the doorC. a piece of paperD. his son's pocket13. A man came to visit the boy’s father on __________________.A. the second dayB. the third dayC. the fourth dayD. the fifth day14. The man was very surprised because __________________.A. he thought the child’s father was deadB. the child didn't ask him to sit downC. the child gave him a cup of teaD. he couldn't find that piece of paper15. What was burnt? __________________.A. The piece of paperB. Mr. SmithC. The visitorD. The boyPassage 4Two farmers were on their way home one evening after a hard day’s work. Both were tired. They happened to look up at the sky and saw a black cloud overhead.“Ah!”said one farmer, “tomorrow we shall have rain and the rice will grow well.” The second answered, “Nonsense, the rain will only kill the crops.”So they began to quarrel. Just then a third farmer came along and asked them why they were quarreling. Both farmers explained about the black cloud.“What cloud?” asked the third farmer. They all looked at the sky. The cloud was no longer there.16. The two farmers were __________________.A. going homeB. going to the fieldC. going to workD. going to see their friend17. The two farmers __________________ on that day.A. had a holidayB. Didn’t workC. worked hardD. wanted to quarrel with each other18. When there are black block clouds in the sky, __________________.A. it will rain soonB. it will be fineC. it will get hotD. the sun is shining brightly19. The two farmers fought in words because __________________.A. they were hungryB. it rainedC. one said the rain would do good to the crops and the othe r didn’t think soD. they both hoped for rain20. The third farmer came with and said to the other two. He __________________.A. wanted to make friends with themB. joined them in the quarrelC. wanted to know why they were quarrelingD. had nothings to doIII. Complete the sentences with the words from the bracket, and you should put them in proper order.（每小题 3 分，共 30 分）1. All sorts of lamps are__________________（可以在那家商店买到）.(in, shop, available, that)2. My apron is __________________（太脏了，我不得不洗它）.(dirty, have, that, I, so, wash, to, it)3. All of them arrive late __________________（由于种种原因）.(variety, reasons, for, of, a)4. We’ll have to find a job, __________________（不管花多长时间）.(how, it, long, takes, no matter)5. Do __________________（手机对大脑有害）?(harm, to, cell phones, brains, do)6. A thinking person must __________________（致力于为和平工作）.(working, commit, himself, to, for, peace)7. Driving on the left is strange at first but you __________________（很快就会习惯）. (get, used, to, will, soon, it)8. Otherwise you have nothing to __________________（为讨论做贡献）.(contribute, discussion, this, to)9. We cut down the number of people who needed to ________________（参与决定重大问题）. (in, involved, important, be, decisions)10. These words best describe his position __________________（关于生和死）.(with, death, to, life, regard, and)IV. Translate the following paragraph into Chinese.（一题，共 20 分）In the 1960s, Bell Labs developed the technology that could support the design of a cellular network. However, AT&T sought permission from the Federal Communications Commission, the FCC, to develop a cellular network in 1971. As these two were trying to win the race, a competitor made a bold and cheeky move in 1973!。

大学英语第三次作业题及答案

第3次作业一、英语应用文（本大题共30分，共 3 小题，每小题 10 分）1.You are required to write a letter of enquiry according to the information given in Chinese below.你叫方兵，是南京师范大学应用数学系02级4班的学生，你想为班级订购《自然与数学》。

这是美国自然科学协会出版的一本比较受欢迎的学术刊物。

由芝加哥一家邮局代办邮订，地址：Fifth Avenue Post, 231 Fifth Avenue, Chicago。

你去信询问有关情况。

在信中你：1) 对这本杂志感兴趣，想订购2) 想先订半年，希望告知如何办理，能否用人民币代替美元3) 订两年以上是否给予优惠4) 国外邮资已包括在订购的价格中还是额外的(应用数学： applied mathematics；订购（阅）：subscribe / subscription；国外邮资：oversea postage；给予优惠：to offer a discount)Dear Sir,2.Directions: This part is to test your ability to do practical writing. You are allowed twenty-five minutes to finish the writing according to the direction provided herein below .1. 事由：欢迎美国学生来我校参观。

2. 时间：20XX年6月22日上午9:00至13:003. 人数：约35人4. 具体安排：Words for reference:接待室 reception room,欢迎会 welcome party,食堂 student canteenAnnouncementWe are glad to have about thirty-five American students who will come to our school for a visit on June 22nd (Sunday)...____Students' Union3.You are required to write a letter to your teacher to tell her your English study plan with no less than 80 words.二、句子翻译（英译汉）（本大题共30分，共 6 小题，每小题 5 分）1.David studied each photo twice and read the captions carefully.2.The city can improve the traffic condition a lot by offering more options of transportation.3.Here are some of the rules copied from a grammar book to help those students who have difficulty in learning English.4.It is difficult to master a foreign language, but it pays to make the effort.5.Every year CCTV chooses “Moving China Top Ten” as the true role models from across the whole nation.6.In China, National Day is celebrated on a large scale.三、句子翻译（汉译英）（本大题共40分，共 10 小题，每小题 4 分）1.体育有益健康。

数据结构第三次作业题及答案.doc

第3次作业一、填空题（本大题共30分，共10小题，每小题3分）1.具有8个顶点的无向图，边的总数最多为_______ o2.树在计算机内的表示方式有______ , ______ , _____ o3.设有一个n阶的下三角矩阵A,如果按照行的顺序将下三角矩阵中的元素（包描对角线上元素）存放在n（n+l）个连续的存储单元中，则A[i][j]与A[0][0] Z间有 _______ 个数据元素。

4.队列是限制插入只能在表的一端，而删除在表的另一端进行的线性表，其特点是______ O5.在广义表的存储结构中，单元索结点与表元索结点有一个域对应不同，各自分别为______ 域和_______ 域。

6.构造连通网最小生成树的两个典型算法是______ O7.在一个稀疏矩阵中，每个非零元索所对应的三元组包括该元索的_________ 、和三项。

8.已知一棵度为3的树有2个度为1的结点，3个度为2的结点，4个度为3的结点，则该树有__________ 个叶子结点。

9.非空的单循环链表head的尾结点（由p指针所指）满足条件10.在哈希文件屮，处理冲突的方法通常有______ 、______ 、______ 和______ 四种。

二、算法设计题（本大题共20分，共2小题，每小题10分）1.回文是指止读反读均相同的字符序列，如〃abba〃和〃abdba"均是回文，但"good" 不是回文。

试写一个算法判定给定的字符向量是否为回文。

2.编写一个算法将一个头结点指针为pa的单链表A分解成两个单链表A和B,其头结点指针分别为g和pb,使得A链表小含有原链表AM序号为奇数的元索，而链表B屮含有原链表A屮序号为偶数的元索，且保持原来的相对顺序。

三、简答题（本大题共20分，共4小题，每小题5分）1.何时选用顺序表、何时选用链表作为线性表的存储结构为宜?2.一棵度为2的树与一棵二义树有何区别？3.指出下述程序段的功能是什么？void Demol( SeqStack *S, int m){ // 设DataType 为int 型SeqStack T; inti;InitStack (&T);while (! StackEmpty( S))if (( i二Pop(S)) !=m) Push( &T, i);while (! StackEmpty( &T)){i二Pop(&T); Push(S, i);4.给定集合{15, 3, 14, 2, 6, 9, 16, 17}(1)(3分)用□表示外部结点，用O表示内部结点，构造相应的huffman 树：(2)(2分)计算它的带权路径长度：(3)(2分)写出它的huffman编码：(4)(3分)huffman编码常用来译码，请用语言叙述写出其译码的过程。

第3次作业题和参考答案电阻电路的一般分析...

第三次作业参考答案----电阻电路的一般分析方法电路定理1. 求各支路电流。

答案： A 625.01=I ，A 625.52−=I ，A 25.63=I 。

2. 用节点电压法求各独立源发出的功率。

答案：电压源发出的功率为W 70710)(10=×=−×I P U ＝电流源发出的功率为W 72989I =×=×U P ＝3. 已知电压源电压U S1=12V ，U S2=8V ，内阻R S1=4Ω，R S2=4Ω；电阻R 1=20Ω，R 2=40Ω，R 3=28Ω，R 4=8Ω，R 5=16Ω。

试用回路电流法求各支路电流。

答案： A 2.0A 1.0A 3.0A 1.0A 2.0A 4.0654321=−=====I I I I I I ，，，，，1R 1R 3U 34. 求下图所示电路中电压表的读数。

答案： 8V5. 已知下图所示电路中，电压源u S (t )=3sin4t V ，电阻R 2= 2R 1=1k Ω。

求电流i (t )。

答案：4sin )(t t i =6.答案： 1221R R R R R in −=7. 电路如图所示。

（1）用叠加定理求各支路电流；（2）求电压源发出的功率。

答案（1） mA 501−=I mA 152=I mA 603=I（2）电压源发出的功率为 W 25.1)05.0(25251−=−×=×=I PΩ(t )Ω38. 已知U S1＝10V ，U S2＝15V 。

当开关S 在位置1时，毫安表读数为I ′＝40mA ；当开关S 在位置2时，毫安表读数为I ′′= -60mA 。

如果把开关倒向位置3，毫安表读数为多少？答案： 190mA =I9. 试用叠加定理计算下图所示电路中U S2=2V 时，电压U 4的大小。

若U S1的大小不变，要使U 4=0，则U S2应等于多少？答案： V 4.04−=U V 2.12=S UU S1 R 2R 1−+U 46k Ω+−U S2R 4R 3−+6k Ω4k Ω4k Ω1.5VI5。

综合英语第三次作业

题目1We all thought ____ a pity that you were unable to attend our meeting.a. whichb. thisc. itd. that题目2-- _____? -- She's our history teacher.a. How is the womanb. Where does the woman workc. Where is she fromd. Who is she题目3There was so much noise in the classroom that the teacher couldn't make himself ______.a. heardb. hearingc. to heard. hear题目4At that time, she ______ on a journey with her friend.a. isb. wasc. is beingd. has been题目5The film brought the hours back to me ______ I was taken good care of in that remote village.a. untilb. wherec. whend. that题目6_______ him go out if he wants to.a. Permitb. Allowc. Leaved. Let题目7is considered to be ________ the other students in her class.a. as intelligent asb. the most intelligentc. intelligent as welld. less intelligent题目8I am not used to speaking ____ public.a. inb. atc. ond. ton public 在公共场合in a loud voice 用很大的声音题目9The policeman gave the thief a blow in ___________ stomach.a. that简析：动词+sb.+介词+the +身体某部位名词此语言点考点是动词的选择或介词的选择如：hit sb. in the face ;hit sb. on the noseseize sb. by the armblow sb. in the stomach题目10Equipped with modern facilities, today's libraries differ greatly from _______.a. the pastb. those of the pastc. which of the pastd. these past题目11They all go outing on such a warm spring day ______ Mark. He is busy with his lessons now.a. except forb. exceptc. besidesd. beside题目12The reason I didn't go to Canada was _______ a new job.a. how I gotb. why I gotc. that I gotd. because I got题目13I have the complacent feeling ____I'm highly intelligent.a. thatb. whatc. thisd. which题目14_______fashion differs from country to country may reflect the cultural differences from one aspect.a. Whichb. Thisc. Thatd. What题目15When father was young, he ______from morning till night.a. was made workb. made to workc. was made to workd. was made working题目16What a bad memory I've got! I even forgot ____the book with me.选择一项：a. to takeb. takingc. takend. take题目17Of all the students in our class, Betty writes ___________.a. more carefullyb. very carefullyc. most carefullyd. carefully题目18- Don't you feel surprised to see George at the meeting? - Yes. I really didn't think he ____ here.a. has beenb. would have beenc. would bed. had been题目19_______playing basketball here? --- Sorry, we'll leave right away.选择一项：a. Would you mindb. Would you don't mindc. Would you mind nod. Would you mind not题目20The music was so loud that she had to raise her voice to make herself ____.a. heardb. to hearc. heard. hearing。

[2023春期]国开河南电大专科《实用法律基础》形考任务(第三次作业)试题及答案

[2023春期]国开河南电大专科《实用法律基础》
形考任务
第三次作业练习试题及答案
说明：考试时不要看ABCD答题，要看答案内容！！
1.外国人在中华人民共和国领域外对中华人民共和国国家和公民犯罪,一律适用我国刑法。

()
A.正确
B.错误
[答案]B
2.某经营者为清偿债务而降低销售商品的行为不属于不正当竞争行为。

()
A.正确
B.错误
[答案]B
3.经营者销售或购买商品，可以以明示方式折扣。

()
A.正确
B.错误
[答案]B
4.有奖销售都是不正当竞争行为。

()
A.正确
B.错误
[答案]B
5.刑法的基本原则是贯穿于刑事立法过程中应当遵循的基本准则。

()
A.正确
B.错误
[答案]B
6.设立国务院直属机构，无需全国人大或全国人大常委会批准()。

A.正确
B.错误
[答案]A
7.民族自治地方是中华人民共和国不可分离的部分。

民族自治机关是独立与其他机关的地方国家机关。

()
A.正确
B.错误
[答案]B
8.经济法律关系的客体不包括非物质财富。

()
A.正确
B.错误
[答案]B
1。

建设法规与合同管理作业题(第三次)(1)

注: 红色标示内容为必做内容, 其它为选做内容。

如果大题为红标题, 表面该大题都为必做。

本学期作业共3次。

本次作业为第三次。

第十章工程施工合同一、填充题1.建设工程施工合同是建设工程的主要合同, 是工程建设质量控制、进度控制、投资控制的主要依据。

2.施工合同的进度控制可分为施工准备阶段、施工阶段和竣工验收阶段的进度控制。

3.发包人供应的材料设备使用前, 由承包人负责检验或试验, 不合格的不得使用, 检验或试验费用由发包人承担。

4.承包人采购的材料设备在使用前, 承包人应按工程师的要求进行检验或试验, 不合格的不得使用, 检验或试验费用由承包人承担。

5.对承包人已完成工程量进行计量、核实与确认, 是发包人支付工程款的前提。

6.保修金（或称保留金）是发包人在应付承包人工程款内扣留的金额, 其目的是约束承包人在竣工后履行竣工义务。

二、单选题1.如需更换工程师, 发包人应至少提前 B 天以书面形式通知承包人, 后任继续行使合同文件约定的前任的职权, 履行前任的义务。

A. 10B. 7C. 15D. 142.施工阶段工程师对进度计划的检查、督促的依据一般是双方已经确认的C 。

A.总进度计划B.季进度计划C.月度进度计划D.周进度计划3.工程师认为确有必要暂停施工时, 应当以书面形式要求承包人暂停施工, 并在提出要求后 B 小时内提出书面处理意见。

A. 24B. 48C. 8D. 144.施工中发包人如果需要对原工程设计进行变更, 应提前 C 天以书面形式向承包人发出变更通知。

A. 7B. 10C. 14D. 285.工程具备隐蔽条件或达到专用条款约定的中间验收部位, 承包人进行自检, 并在隐蔽或中间验收前 D 小时以书面形式通知工程师验收。

A. 24B. 8C. 16D. 486.设备安装工程具备单机无负荷试车条件, 由 C 组织试车。

A.设备生产商B.工程师C.承包人D.发包人7.设备安装工程具备无负荷联动试车条件, 由 D 组织试车。

公司金融第三次作业

第五章公司证券投资管理一、单项选择题1.一般认为,企业进行长期债券投资的主要目的是( )。

A.控制被投资企业B.调剂现金余缺C.获得稳定收益D.增强资产流动性2.投资一笔国债，5年期，平价发行，票面利率12.22％，单利计算，到期收取本金和利息，则该债券的投资收益率是（）。

A.9% B.11% C.10% D.12%3.下列因素中，不会影响债券价值的是（）。

A.票面价值和票面利率B.市场利率C.到期日与付息方式D.购买价格4.下列说法中正确的是（）。

A、国库券没有利率风险B、公司债券只有违约风险C、国库券和公司债均有违约风险D、国库券没有违约风险，但有利率风险5.证券的购买力风险表现为( )。

A.出售证券所得收入小于原投资额B.出售证券所获得的货币资金的购买力下降C.证券不能立即出售转换为现金D.证券发行人无法支付利息6.证券投资者购买证券时，可以接受的最高价格是证券的（）。

A.票面价格B.到期价格C.市场价格D.内在价值7.当投资期望收益率等于无风险投资收益时，风险系数应（）。

A.大于1B.等于1C.小于1D.等于08.低风险、低收益证券所占比重较小,高风险、高收益证券所占比重较高的投资组合属于( )A.冒险性投资组合B.适中性投资组合C.保守性投资组合D.随机性投资组合9.下列各项中,属于证券投资系统性风险的是( )。

A.利息率风险B.违约风险C.破产风险D.流动性风险10.在利率下降时，证券价格一般会（）。

A.下跌B.上涨C.涨跌交错D.不变二、多项选择题1.证券投资的风险主要有（）。

A.违约风险B.利息率风险C.购买力风险D.流动性风险2.证券投资的收益包括（）。

A.现价与原价的价差B.股利收益C.债券利息收益D.出售收入3.与股票内在价值呈反方向变化的因素有（）。

A.股利年增长率B.年股利C.预期的报酬率D.β系数4.下列风险中,固定利率债券比浮动利率债券风险的的有( )。

A.违约风险B.利息率风险C.购买力风险D.变现力风险5.相对于实物投资,证券投资的特点有( )。

成本管理第三次作业参考答案

1作业及讲评栏作者：东向兰成本管理第三次作业参考答案一、单项选择题1．企业编制成本计划时，应根据其生产的特点和管理的要求进行，在规模比较小的企业，其成本计划的编制可采取（本计划的编制可采取（ A A）。

A.A.一级成本计划编制方式一级成本计划编制方式一级成本计划编制方式 B. B.二级成本计划编制方式二级成本计划编制方式C.C.三级成本计划编制方式三级成本计划编制方式三级成本计划编制方式D. D.一级与二级相结合的编制方式一级与二级相结合的编制方式 2．在编制直接材料成本计划时，应根据产品的产量、单位产品材料的定额消耗数量乘（ C ）。

A.A.材料的计划消耗数量材料的计划消耗数量材料的计划消耗数量 B. B.材料的标准消耗数量材料的标准消耗数量 C.C.材料的计划单价材料的计划单价材料的计划单价 D. D.材料的采购数量材料的采购数量 3．下列不属于成本报表的是（．下列不属于成本报表的是（ C C）。

A.A.商品产品成本表商品产品成本表商品产品成本表 B. B.主要产品单位成本表主要产品单位成本表 C.C.现金流量表现金流量表现金流量表 D. D.制造费用明细表制造费用明细表 4．在“主要产品单位成本表”中，不需要反映的指标是（．在“主要产品单位成本表”中，不需要反映的指标是（ D D）。

A.A.上年实际平均单位成本上年实际平均单位成本上年实际平均单位成本 B. B.本年计划单位成本本年计划单位成本 C.C.本月实际单位成本本月实际单位成本本月实际单位成本 D. D.本月实际总成本本月实际总成本 5. 企业在编制成本计划时，一般是先编制（企业在编制成本计划时，一般是先编制（ B B）。

A. 基本生产车间的成本计划基本生产车间的成本计划 B. B. 辅助生产车间的成本计划辅助生产车间的成本计划 C. C. 制造费用总预算制造费用总预算 D. D. 期间费用预算期间费用预算6．下列不属于成本分析的基本方法的是（．下列不属于成本分析的基本方法的是（ B B）。