Homework 2
Homework 2 name:宋姝阳
Student ID:2016053180
1. The one variable that stands out as the most significant explanation of large variations in living standards around the world is
a. productivity.
b. population.
c. preferences.
d. prices.
2. Perry accumulated a lot of mathematical skills while in high school, college, and graduate school. Economists include these skills as part of Perry’s
a. standard of learning.
b. technological knowledge.
c. physical capital.
d. human capital.
3. Which of the following items plays a role in determining productivity?
a. physical capital
b. natural resources
c. technological knowledge
d. All of the above are correct.
4. The equipment and structures available to produce goods and services are called
a. physical capital.
b. human capital.
c. the production function.
d. technology.
5. Using the notation and production function in the text, Y/L is
a. productivity.
b. output.
c. the availability of natural resources.
d. the amount of human capital.
6. If there are constant returns to scale, the production function can be written as
a. xY = 2xAF(L, K, H, N).
b. Y/L = A F(xL, xK, xH, xN).
c. Y/L = A F( 1, K/L, H/L, N/L).
d. L = AF(Y, K, H, N).
7. Suppose there are constant returns to scale. Now suppose that over time a country doubles its
workers, its natural resources, its physical capital, and its human capital, but its technology is unchanged. Which of the following would double?
a.
both output and productivity b.
output, but not productivity c.
productivity, but not output d. neither productivity nor output
8. If the production function has the constant-returns-to-scale property, then it is possible that the specific form of the production function is
a. Y = 4L + 2K + 3H + N
b. Y = (L + K + H + N)/4
c. Y =2
d.
Y = 4
Figure 25-1. On the horizontal axis, K/L represents capital (K) per worker (L). On the vertical axis, Y/L represents output (Y) per worker (L).
9. Refer to Figure 25-1. The curve becomes flatter as the amount of capital per worker increases because of
a. increasing returns to capital.
b. increasing returns to labor.
c. diminishing returns to capital.
d. diminishing returns to labor.
10. Suppose there are constant returns to scale. Now suppose that over time a country doubles its workers, its natural resources, its physical capital, and its human capital, but its technology is unchanged. Which of the following would double?
a. both output and productivity
b. output, but not productivity
K/L
Y/L
c. productivity, but not output
d. neither productivity nor output
11. Other things equal, relatively poor countries tend to grow
a. slower than relatively rich countries; this is called the poverty trap.
b. slower than relatively rich countries; this is called the fall-behind effect.
c. faster than relatively rich countries; this is called the catch-up effect.
d. faster than relatively rich countries; this is called the constant-returns-to-scale effect.
12. If your firm’s production function has constant returns to scale, and if you doubled all your inputs, then your firm's output would
a. not change.
b. increase, but by less than double.
c. double.
d. more than doubl
e.
13. All else equal, if there are diminishing returns, then if a country raised its capital by 100 units last year and by 100 units this year,
a. the increase in output was greater for this year than last year.
b. the increase in output was greater last year than this year.
c. the increase in output is the same in both years.
d. None of the above is necessarily correct.
14. In addition to investment in physical and human capital, what other public policies might a country adopt to increase productivity?
improve technology to use the same labor and capital to produce more output;put out some policies which are beneficial for workers to let them work more efficient.
15. Some data that at first might seem puzzling: The share of GDP devoted to investment was similar for the United States and South Korea from 1960-1991. However, during these same years South Korea had a 6 percent growth rate of average annual income per person, while the United States had only a 2 percent growth rate. If the saving rates were the same, why were the growth rates so different?
the growth rate of average annual income that seems small becomes large when compounded for many years.the income of united states before 1960 is much higher the South Korea. and the saving rates were the same, of course the growth rate of south korea is higher .it shows the rate of productivity.
homework1
《计算机系统基础》Homework HW1：数据的表示 实验目的：熟悉数值数据在计算机内部的表示方式，掌握相关的处理语句。 实验报告要求： 1.说明你做实验的过程（重要步骤用屏幕截图表示）。 2.提交源程序。 3.分析或回答问题。 完成下列实验，提交实验报告： 1.下述两个结构所占存储空间多大？结构中各分量所在位置相对于结构起始位置的偏移 量是什么？要求编写程序以验证你的答案。若使用#pragma pack(2)语句，则结果又如何？ struct test1 { char x2[3]; short x3[2]; int x1; long long x4; }; struct test2 { char x2[3]; short x3[2]; int x1; long long x4; }__attribute__((aligned(8))); 2.“-2 < 2”和“-2 < 2u”的结果一样吗？为什么？ 3.运行下图中的程序代码，并对程序输出结果进行分析。
4.运行下列代码，并对输出结果进行分析。 #include
经济学相关 Homework 2
Homework 2 Due Date: Oct-12/13-2017 I. Multiple Choice Questions 1. An increase in price will lead to a lower quantity demanded because: A) suppliers will supply only the smaller amount. B) some individuals will no longer purchase the good. C) individuals purchase less of the good. D) a and b. E) b and c. 2. If E were the old equilibrium in the market for wheat in the figure below, and E' the new one, which of the following could have caused the change? A) Consumer income rose, causing a supply shift. B) Bad weather caused a supply shift. C) Consumer income rose, causing a demand shift. D) Supply and demand both shifted.
E) None of the above are plausible descriptions. 3. A change in which of the following will not alter the demand curve for rental housing? A) The price of houses. B) Rental prices. C) Incomes of consumers. D) Energy prices. E) Growth in the community. 4. The demand curve for a normal good will shift to the right if: A) income increases. B) population increases. C) the price of a substitute good increases. D) all the above. E) none of the above. 5. The demand curve for a normal good will shift to the left if: A) income increases. B) population increases C) the price of a substitute good decreases. D) all the above. E) none of the above. 6. A drought would probably: A) cause wheat suppliers to move up their supply curves to a higher price. B) induce greater demand for wheat, yielding a higher price. C) cause people to reduce their demand for wheat. D) induce an upward and leftward shift in wheat's supply curve. E) lower the prices of substitutes for wheat.
(完整word版)初一(1)homework趣味英语
让更多的孩子得到更好的教育 Homework A. Fill in the blanks with the correct form. Work, close, look, have, teacher, pen, eat, China, play, climb 1.This is our ___________ desk. Ours are over there. 2.Bill has three _____________. One is new and the other two are old. 3.His uncle _____________ very young but he is over forty. 4.Let's ______________ basketball after class. 5.Look! The cats are _______________ up the trees. 6.The shop isn't open. It's ______________. 7.My brother _______________ some new picture books. 8.In our classroom there is a large map of _______________. 9.Mum, please give me something to ______________. I'm very hungry. 10.Does Mr Green like _______________ in this Chinese school? B. Complete the following sentences. 11.I live with my family in a ________ (wood) house. 12.Look! The bus ________ (come). 13.Let's________(try) the Chinese restaurant in Star Shopping Mall. 14.John sometimes goes ________ (swim) in summer. 15.Three men in police uniform ran out of the ________ (build). You’ve got points in total 2013.07.05 让更多的孩子得到更好的教育
公共管理学作业homework答案
《公共管理学》homework（1） 一、名词解释 1.公共管理: 公共管理是指公公组织为解决公共问题，追求公共利益，运用公共权力，通过制定公共政策、有效地实行与监督等，提供公共物品和公共服务，维护公共秩序，对公共事务进行管理的社会活动。 2.公共选择理论公共选择理论是一门介于经济学和政治学之间的新兴交叉学科，它是运用经济学的分析方法来研究政治决策机制如何运作的理论。 3. 公共管理协调指协商、调整公共组织系统与其外部环境之间和系统内部的各种关系，使之权责清晰，分工合作，相互配合，有效地实现公共管理目标和提高整体效能的行为。 4. 公共管理监督是指依法对政府和公共事业组织等公共组织及其工作人员的监察和督导活动。 二、单项选择 1.1926年在美国出版两本权威的行政学教科书《行政学研究导论》《公共行政学原理》的两位学者分别是( B ) 25 A.泰勒和法约尔 B.怀特和威洛比 C.威尔逊和古德诺 D.马克斯?韦伯和赫伯特?西蒙 2.公共选择理论理论对政府的本质和行为的基本假设是( B)
A.社会人 B.经济人 C.自动人 D.复杂人 3.大萧条以后，为资本主义的稳定和发展起到了积极的作用的经济理论是( A ) A.凯恩斯的政府干预理论 B.新自由主义取消政府干预理论 C.亚当?斯密的“小政府”理论 D.古典经济学派的限制政府干预理论 4. 最早建立了比较规范的文官制度的国家是( A ) A.英国 B.法国 C.德国 D.美国 5. 18世纪英国著名经济学家________，在他著名的经济学著作《国富论》中对政府财政的管理范围和职能进行了限定。( C ) A.威廉?配第 B.马歇尔
unit 2 homework
unit 2 Relationship homework 1.第四周作业 Watch U2V1: What keeps people healthy and happy? 2.第五周作业 Each member of a group takes a task from Origin tracker, Practice describer, Reason explorer and Commentator. Prepare for your role task according to the following table. Project 2 Discussion Circle: Filial Love / Filial Piety Mandatory Preview 1) Read the passage about filial piety on p19-20 2) Search online for the relevant information about “filial love/piety” in Chinese and the western civilizations. For reference： A.Xiao Jing or Classic of Xiào 《孝经》 B.The Analects of Confucius 《论语》 C.Di Zi Gui (Standards for Being a Good Student and Child)《弟子规》 D.24 Stories of filial piety in ancient China (二十四孝故事) and the video clip on the “new filial piety” E.“Filial”-related scriptures in Bible Role Task Requirements Origin tracker Cultural tracking of the concept of filial love/filial piety in China and in the western world 文化寻根：中西方“孝”理念之溯源（建议：按照时间顺序进行“孝”理念发展的历史梳理。） Practice describer Description of the differences and common points between China and the west in the understanding and practice of filial love/piety and the ways of getting along with parents 中西对比：对“孝”的理解,践行以及与父母相处之道的异和同。(建议：切忌杂乱堆砌，提炼出清晰的比较点，如：亲密度，顺服度，依赖度等) Reason explorer Analysis of the reasons behind the differences of understanding and practice in filial love /pity 中西孝道观念差异背后的深层原因挖掘。（建议：地缘环境，政治结构，经济体制，文化传统，代际价值观等) Commentator Comments on the“24 stories of filial piety" in ancient China and the statement on what is due to our parents in the modern society 古训今评： 建议：1.传统24孝故事中哪些是愚孝应被批判摒弃（具体错在哪里），哪些值得今人借鉴并得以弘扬传承（具体好在哪里），切忌详述故事内容2.对现代社会个人如何对父母尽孝有何启发
homework_6
1. Linear prediction analysis is used to obtain an eleventh-order all-pole model for a segment of voiced speech that was sampled at a rate of Fs =8000 samples/second. The system function of the model is: 11 111 11()()11k k i k i G G G H z A z z z z α??=====??∑∏ Table 1 shows five of the roots of the eleventh-order prediction error filter,()A z . Table 1: Root locations of eleventh-order prediction error filter in the z-plane (a) Determine where the other six zeros of ()A z are located in the z-plane. If you cannot precisely determine the pole locations, explain where the pole might occur in the z-plane. (b) Estimate the first three formant frequencies(in Hz) for this segment of speech. (c) Which of the first three formant resonances has the smallest bandwidth? How is this determined? 2. A casual LTI system has system function: 1 12314()10.250.750.875z H z z z z ?????=??? (a) Use the Levinson-Durbin recursion to determine whether or not the system is stable. (b) Is the system minimum phase? 3. A speech signal frame (windowed using a Hamming window) has energy: (0)2 []1000n n m E s m ==∑ Using the autocorrelation method of analysis on this speech frame, the first 3
小学英语冀教版四年级上册《Lesson 7 Homework》同步练习
Lesson7 Homework 同步练习根据汉语意思写出单词 1. 晚上__________ 2. 作业__________ 3. 读__________ 4. 写__________ 5. 画__________ 6. 唱__________ 汉译英 1.你在晚上做什么？ _______________________________ 2.我做作业。 _______________________________ 给下列句子选择合适的汉语意思 ( ) 1. I read a book. ( ) 2. I write a story. ( ) 3. I do my homework. ( ) 4. I sing a song. A.我唱歌。 B.我读书。 C.我做作业。 D.我写故事。 单选题 1. What do you ________ in the evening? A. do B. does C. did D. dos 2. What do you do________ the evening? A. on B. at C. from D.in 英译汉 1. I draw a picture for my story.
_______________________________________ 2. This is the way I wash my clothes. _____________________________________________ 参考答案 根据汉语意思写出单词 1.Evening 2.Homework 3.Read 4.Write 5.Draw 6.sing 汉译英 Miss 1. What do you do in the evening? 解析：在晚上in the evening 2. I do my homework. 解析：do one’s homework做作业给下列句子选择合适的汉语意思 1.B 解析：固定搭配 2.D 解析：固定搭配 3.C 解析：固定搭配 4.A 解析：固定搭配 单选题 1.A 解析：What do you do... 询问做什么 2.英译汉D 解析：in the evening在晚上固定搭配 1.Betty 去参加聚会穿什么？为什么？ 1. 我为我的故事画一幅画。 2. 这是我洗衣服的方式。
Homework 2光华管理学院概率统计作业
Problem Set2 1.Each time a shopper purchases a tube of toothpaste,he choose either brand A or brand that he will choose B.Suppose that for each purchase after the?rst,the probability is1 3 that the same brand that he chose on his preceding purchase and the probability is2 3 he will switch brands.If he is equally likely to choose either brand A or brand B on his?rst purchase,what is the probability that both his?rst and second purchases will be brand A and both his third and fourth purchases will be brand B? 2.In the World Series of baseball,two teams A and B play a sequence of games against each other,and the?rst team that wins a total of four games becomes the winner of the World series.If the probability that team A will win any particular game against team B is1/3,what is the probability that team A will win the World series? 3.Suppose that A1,A2,...,A k are a sequence of k independent events.Let B1,B2,...,B k be another sequence of k events such that for each value of j(j=1,2,...,k),either .Prove that B1,B2,...,B k are also independent events.Hint: B j=A j or B j=A C j . Use an induction argument based on the number of events B j for which B j=A C j 4.Suppose that when a machine is adjusted properly,50percent of the items produced by it are of high quality and the other50percent are of medium quality.Suppose, however,that the machine is improperly adjusted during10percent of the time and that,under these conditions25percent of the items produced by it are of high quality and75percent are of medium quality.
高中英语优质课课件Homework
Homework Revision for Book 6 Unit 2 Poems 惠州市光正实验学校曹慧嫱 Ⅰ. Go over the words and the phrases of Unit 2. Prepare for the dictation of this unit. Ⅱ. Go over the content of the Subjunctive Mood on Page 86-87 in your textbook. Ⅲ. Finish the exercises below: 一. 用本单元所学单词的适当形式填空 1. The message __________ (传达)here is clear: Actions speak louder than words. 2. They are trying hard to reduce the harm caused by pollution to a ____________ (最低限度). 3. The company where her father works is one of the _________ (赞助商) of the Olympic Games. 4. Is it an a_______________ time to make a speech now? 5. I’m fully aware that it’s the experience from my life abroad has totally t___________ me. 6. To his s__________, he lost all his possessions because of his failure in his business. 7. Are you doing anything _____________ (particularly) tonight? 8. As a matter of fact, employees expect to work ____________ (flexible) in the workplace. 9. Any behavior that is repeated enough times will ___________ (eventual) become a habit and happen automatically. 10. He is good at English _____________ and has ___________ many novels. (translate) 二、单句写作 1. In this letter, I would like to _________________________ for your assistance. 对于您的帮助，我想在这封信中表达对你的感谢。 2. ______________, and you will be all right in a couple of days. 别担心，过几天你就会痊愈的。 3. About 5% of the US population _____________________ American Indians. 美国人口的大约百分之五是由美国印第安人组成。 4. Mothers holding jobs outside the home __________________ to make it easier to care for their children. 在家庭外有工作的妈妈应该有灵活的工作时间表，这样他们就能照看孩子更容易些。 5. We are __________________________ the petrol. We must find a gas station immediately. 我们的汽油快用完了，我们必须赶快找到加油站。 6. Sports clothes _______________________ a formal wedding. 运动服不适合在正式婚礼中穿。 7. We students ____________________________________________, who are rich in experience, and above all, love us most in the world. 我们学生应该经常和父母交换想法，他们经验丰富，而且最重要的是，在这个世界上他们是最爱我们的人。 8. I can tell you the truth, but you must promise ________________________. 我可以告诉你真相，但你要承诺不要泄露秘密。 9. The inventor is excited, and he is going to ___________________________. 这位发明家很兴奋，他要试一下他的新机器。 10. If_____________________________ (没有电)，what would happen? 11. How I wish you _______________________________ (能来参加聚会) this weekend. 12. 要不是你对伤员进行急救的话，他早就死了。 _______________________________________________________________________________ 13. 你如果对计划早点儿做出调整，就不会陷入困境了。 _______________________________________________________________________________ 14. Grace doesn’t want to move to New York because she thinks if she ___________ (居住) there, she wouldn’t be able to see her parents very often. Homework Revision for Book 6 Unit 2 共1页
homework 5
Homework5 Due to3:30pm,5Nov致知楼2楼教员休息室 1.Let x and y are positive numbers.Please design a Turing Machine (diagram)to compute x×y(multiple of x and y).You should explain the notation of x and y.Hint:you may get the notation as simple as you can. 2.If L is a language,and a is a symbol,then L/a,the quotient of L and a,is the set of strings w such that wa is in L.For example, if L={a,aab,baa},then L/a={ε,ba}.Prove that if L is regular,so is L/a.Hint:Start with a DFA for L and consider the set of accepting states. 3.Show that the regular languages are closed under the following operations:min(L)={w|w is in L,but no proper prefix of w is in L}. https://www.sodocs.net/doc/ea11039160.html,e the CFL pumping lemma to show that the following language is not context free {a i b j c k|i 第6周homework 1答案 Have you ever felt lumps under the skin on the sides of your neck when you were sick? Those might be lymph nodes. 1.They can get swollen and painful but their job is to fight infection. Lymph nodes are part of the body's defenses known as the lymphatic system. 2.This complex system throughout the body makes and transports a protective fluid called lymph. 3.Lymph is made of white blood cells, proteins and fats. In a patient with breast cancer, the cancer can spread to the large number of lymph nodes under the arm. 4. Doctors have traditionally removed many of these lymph nodes in the hope of removing all the cancer. But the latest research finds nothing to gain by removing so many lymph nodes. Doctors have two choices when breast cancer starts to spread. They can do what is called a sentinel node biopsy. They remove the main growth and one or 2 lymph nodes nearest to it. 5.Or they can take more aggressive action and remove a lot of lymph notes. 6. But that can lead to shoulder pain and permanent swelling o f the arm. 第6周homework 2答案 Now the Earth Policy Institute in Washington has issued a bleak warning of the risk of environmental and economic 1. chaos. Its founder Lester Brown says a push towards sustainability could help. In fact, he says, it's essential. In this week's Global Business, Peter Day hears why. Lester Brown started life as a farmer in New Jersey, the Garden State in the USA. He got some hefty degrees, worked at home and abroad for the US Department of Agriculture, and then in 1974, he founded the World Watch Institute. It became well-known for its 2. annual state of the world reports on the global environment. Years ago when I had one of our 3. periodic chats at the World Watch Institute in Washington D.C., I remember a room decked with satellite maps of the world's watershed areas. Water is still an 4.abiding theme for Lester Brown in his newer role as founder and head of the Earth Policy Institute. It's another Washington D.C. think tank designed to provide a road map for building a 5.sustainable economy. But even after so many years on the environmental beach, there's a new urgency in what Lester Brown is saying in the book World on the Edge. As an agriculturist by training, he 6.focuses on food and the new threat of food scarcity caused by natural disasters,such as the Russian drought last summer, and 7.consequential flooding elsewhere, and increasing demand for many developing countries as well as the rich world. Lester Brown thinks 8.the world has to mobilize to embrace sustainability in the way ●用方框中的介词填空。 1．We are now flying above the clouds. 2．The birds flew over the fields to the south. 3．The children are playing ball games under the big tree. 4．The Staves live on the first floor, just below us. 5．A lieutenant is beneath a captain in rank. ●连接下列句子，以By the tim e…开头。 Example：The Hubble’s eagle eye will send us thousands of pictures. You will read this. By the time you will read this, the Hubble’s eagle eye will have send us thousands of pictures. 1．I will leave for New York. You will read this note. By the time you read this note, I will have left for New York. 2．The children will grow up. You will see them again. By the time you see them again, the children will have grown up. 3．The robbers escaped. The police arrived. By the time the police arrived, The robbers have escaped. 4．All the other runners will go home. He will finish the race. By the time he finishes the race, all the other runners will have gone home. 5．The concert finished. She got to the theatre. By the time she got to the theatre, the concert had finished. ●用下列方框中适当的词填空。 Peter usually played outside for an hour after school, 1．but last week he rushed home 2．after/as soon as he had finished his test. 3．when he unlocked the door, he felt there was something strange. 4．So he stepped quietly 5．and looked inside. 6．the moment he caught sight of a stranger, he realized that it must be a robber. 7．So he retreated 8．and locked the door again. 9．Then he called the police. 10．Soon the police car arrived 11．and they took the robber away. ●用括号中的词翻译。 1. 等到你看到我的信时，我就已经写完作业了(将来完成时) By the time you see my letter, I will have finished my homework. 2. 他一进来，教室的气氛就变了（atmosphere） The moment he came in, the atmosphere in the classroom changed. 2012-2013学年度第一学期五年级英语Unit 1 单元测验 班别__________ 姓名__________ 成绩__________ 听力部分 一、听一听选一选根据录音内容，找出符合录音内容的单词，并将其编号写在括号里。(10分) A B C （）1 fun sunny fuuny ( )2. tall fall ball ( )3. quiet kind kids ( )4. music math mouth ( )5. short tall shorts ( )6. Miss Li Mr liu Mr Zhao ( )7. our old your ( )8. thin thank fine ( )9. strong strict science ( )10. She’s strong. He’s John. She’s twelve 二、听一听判一判根据录音内容，对的打“√”，否则打“×”。（10分） 1. 2. 3. 4. 5. ( ) ( ) ( ) ( ) ( ) （）6、The old lady in black is our principal. （）7、We have three new teachers. （）8、The music class is so much fun. （）9、My P.E.teacher is strict,not kind. （）10、Miss Chen is a science teacher. 三、听一听写一写根据录音选择正确的单词，将其编号填在横线上。（10分） １．Who’s your teacher （ A.English, B. Chinese）. ２． Our principal is (A.kind , B.quiet). ３． Is active? ( A.she, B.he) ４．What’s Lin ( A.Miss, B.Mr) like? ５．He’s ______ and strong. (A. young B.old) 四、听一听答一答根据你在录音中的问题，找出最合适的答句把字母编号填在括号里。（10分） （）1. A.She’s quiet. B.Miss Zhang. C.That’s right. （）2. A.Yes ,she is. B.Yes,he is. C.He’s smart. （）3. A. Yes,we do. B.We have three teachers. C.We like him. （）4. A. Mr Lei. B. Miss Zhang. C.He’s tall and big. （）5. A.She’s our teacher. B.She is strict. C.He is thirty. 五、听一听,判一判听一段对话，并根据录音内容判断下列句子的正误，对 的打“√”，错的打“×”。（10分） ( ) 1. Jack is an English teacher. ( ) 2. Jack short and strong. ( ) 3. Jack has short brown hair. ( ) 4. Jack active and smart. ( ) 5. We all like him very much. 读写部分 六、根据图片提示,完成下面句子,每空填一词。（10分）第6周homework 答案
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