Many a young person tells me he wants to be a writer. I always encourage such people, but I also explain that there’s a big difference between a writer and writing. In most cases these individuals are dreaming of wealth and fame, not the long hours at a ty pewriter. “You have got to want to write,” I said to them, “not want to be a writer.”
The reality is that writing is a lonely, private and poor-paying affair. For every writer kissed by fortune there are thousands more whose longing is never rewarded. When I left a 20-year career in the U.S. Coast Guard to become a freelance writer, I had no prospects at all. What I did have was a friend who found for me my room in a New York apartment building. It didn’t even matter that it was cold and had no bathroom. I immediately bought a used typewriter and felt like a genuine writer.
After a year or so, however, I still hadn’t got a break and began to doubt myself. It was so hard to sell a story that barely made enough to eat. But I knew I wanted to write. I had dreamed about it for many years. I wasn’t going to be one of those people who died wondering. What if? I would keep putting my dream to test (even though it meant living with uncertainty and fear of failure). This is the shadow-land of hope, and anyone with a dream must learn to live there.
1.The passage is meant to ___A____
A、warn young people of the hardship that a successful writer has to experience
B、advise young people to give up their idea of becoming a professional writer
C、show young people it is unrealistic for a writer to pursue wealth
D、encourage young people to pursue a writing career
2.What can be concluded from the passage? D
A、Genuine writers often find their work interesting ａｎｄrewarding.
B、A writer’s success depends on luck rather on effort.
C、Famous writers usually live in poverty ａｎｄisolation.
D、The chances for writers to become successful are small.
3.Why did the author begin to doubt himself after the first years of his writing career? B
A、He was not able to produce a single book.
B、He hadn’t seen a change for the better.
C、He wasn’t able to have a rest for a whole year.
D、He found his dream would never come true.
4.In “…people who died wondering”, “who” refers to those ___B___ .
A、who think too much of the dark side of life
B、who regret giving up their career halfway
C、who think a lot without making a decision
D、who are full of imagination even upon death
5.“Shadow-land” in the last sentence refers to ____C__ .
A、the wonderland one often dreams about
B、the bright future that one is looking forward to
C、the state of uncertainty before one’s final goal is reached
D、a world that exists only in one’s imagination
In many stories on TV and in science-fiction books, men travel to faraway stars. They have quick, easy journeys. But so fa r, men have been able to reach only the earth’s own moon.
Suppose a man wanted to reach a distant star. Even if he traveled his whole life, he would have to move faster than the speed of the light. Nothing can move that fast except light itself.
Strange things happen to an object when it moves rapidly. The object weighs more. An object moving at 86 percent of the speed of light is twice as heavy as it is at rest. A stick appears shorter. A clock runs more slowly. A man would not age so fast as he would on the earth.
Light travels more than 186,000 miles a second, or about 11 million miles a minute. In one year, light travels six trillion miles. That great distance is called a light-year. It is used to measure distance in space.
The star closest to our sun is Alpha Centauri. It is more than four light-years away. If one traveled at the speed of light, he could make a round trip to Alpha Centauri in nine years. But, even at that speed, he could not reach Alcaid (北斗星) in the handle of the Big Dipper. A one-way journey to Alcaid would take almost 200 years.
1. In this passage the words “closest to our sun” means the star ____B____ .
A、the earth we live on
B、Alpha Centauri
C、the Big Dipper
D、the moon
2.A one-way journey to Alcaid would take ___C_____ .
A、about nine years
B、less than four years
C、almost 200 years
D、less than 100 years
3.Why do we measure the distance in light-years instead of miles? B
A、Units of light-years sound better.
B、Using light- years reduced the number of figures used.
C、We used to measure distance in light-years long ago.
D、We do not make mistakes when we ｕｓｅlight-years.
4. If a stone moved at the speed of light, it ___A_____
A、would weigh twice more than it is motionless
B、would weigh as much as it is on earth
C、would weigh less than it is on earth
D、would not have weight at all
5.This story is mainly about _____B___ .
A、the distance between the sun ａｎｄthe other stars
B、the problems of traveling to faraway stars
C、what happens when we travel faster than the speed of light
D、the tool we ｕｓｅwhen we go to faraway stars
Students can travel in the United States without spending too much money if they follow these suggestions.
A travel agent can give you information on special economy fares for trains, buses and planes. Think about hiking or biking for a part of your trip, too. You’ll not only save money, but you’ll also see a lot more of the country.
Some students may want to travel by car. Be sure to think about going with other students—many colleges have “ride boards” that list when and where other students plan to travel. Many radio stations provide the same sort of service —they announce who’s driving where, when, how many riders they will take and what the expenses will be.
There are many inexpensive, older hotels near bus or train stations. Check your travel guide for names of the best. Many parts of the country also have youth hostels where young people can stay for only a few dollars a night.
You don’t have to eat in restaurants all the time, but we don’t recommend a diet of candy and cola, either. You can usually get a healthy, cheap breakfast in a restaurant. If the weather is warm, you can buy food in supermarkets or at roadside stands and have a picnic for lunch. For dinner you can get the names of good, cheap restaurants from travel guides or friends.
1. The passage tells students ____C__ .
A、how to make travel plans
B、how to get help while traveling
C、how to ｕｓｅless money while traveling
D、how to choose hotels
2.To see more of the country, you’d better travel __D____ .
A、by plane
B、by bus
C、by train
D、by bike
3.If you want to share rides with others, you can get information ____B__ .
A、on the blackboards in classrooms
B、from school administrators
C、through certain radio programs
D、from travel agents
4.According to the passage, staying at youth hostels is ____A__ .
A、cheap
B、convenient
C、comfortable
D、enjoyable
5.To save money, you can ___C___ .
A、have more candy ａｎｄcola
B、invite your friends for a picnic
C、take some food with you
D、eat in restaurants sometimes
If there is any single factor that makes for success in living, it is the ability to profit by defeat. Every success I know has been achieved because the person was able to analyze defeat and actually profit by it in his next undertaking. Confuse defeat with failure, and you are doomed indeed to failure, for it isn’t defeat that makes you fail: it is your own refusal to see in defeat the guide and encouragement to success.
Defeats are nothing to be ashamed of. They are routine incidents in the life of every man who achieves success. But defeat is a dead loss unless you do face it without feeling ashamed, analyze it and learn why you failed. Defeat, in other words, can help to cure its own cause. Not only does defeat prepare us for success, but nothing else can arouse within us such a compelling desire to succeed. If you let a baby grasp a rod and try to pull it away, he will cling more and more tightly until his whole weight is suspended. It is this same reaction that should give you new and greater strength every time you are defeated. If you fully use the power which defeat gives, you can accomplish with it far more than what you are capable of.
1.The author ____D____ .
A、orders you to analyze defeat
B、wants you to face defeat
C、advises you to let a baby grasp a rod
D、warns you not to confuse defeat with fail
2.Defeat is valuable ___C____ .
A、because it is a factor
B、because it isn’t defeat that makes you fail
C、because it provides the guide ａｎｄencouragement to success
D、because it is not a thing to be ashamed of
3.What does the author know? __B_____ .
A、he knows every success in life
B、he knows the factor making for success
C、he knows every man who is able to analyze defeat
D、he knows the life of every man
4.The person who was able to analyze the defeat is likely ____C___ .
A、to be a successor
B、to face it with feeling ashamed
C、to achieve success
D、to be ashamed of it
5. What does the author advise one to do with the power which defeat gives? One should __A_____ .
A、explore it
B、explain it
C、let a baby grasp a rod
D、learn it
大学英语精读 3 课后答案【篇一：大学英语精读第三版第三册课后答案(含 close 原文)】 >1) accent 2) turn against 3) a couple of 4) takes his time 5) fate 6) confirmed 7) witness 8) subsequent 9) stands a chance 10) trial 1) belief 2) brilliant 3) employment 4) has saved up 5) stood a chance 6) were awarded 7) presumably 8) conducted 9) casual 10) around (which student life) revolves 1) joe wrote to say that he had to put off his visit because of his illness. 2) despite the noise, they went on working as if nothing were happening. 3) traffic was held up for several hours by the accident. 4) called (up) on to speak at the meeting, i couldnt very well refuse. 5) mrs. stevenson looked in the cupboard and found there was not a single lump of sugar left. 6) it was the rumor that turned joe against his twin brother. 7) we wondered how sara was getting on in her new job. 8) although anne agreed with me on most points, there was one on which she was unwilling to give in. 9) visitors could photograph almost anything here without having to ask for permission.
通用实体 答案:通用实体包含文档内容，即XML文本、其它文本或非文本数据。 伪类 答案:伪类是特殊的类，能自动地被支持CSS的浏览器所识别。 存储过程 答案:存储过程是由一系列SQL语句组成，常被设计用来完成一个特定的功能，便于共享及程序模块化。 Request 答案:ASP内置对象，它在一个HTTP请求过程中，获取由浏览器传送给服务器的消息。包括从HTML 表单、cookie 和客户端认证等。 外部实体 答案:外部实体是指包含在独立文件中的实体。 数组 答案:数组是若干个元素的有序集合，每个数组有一个名字作为其标识。 SQL 答案:SQL是一个被广泛采用、适用于关系数据库的数据库语言工业标准，他是一种数据库子语言，是一种控制与DBMS 交互的语言。 表单 答案:提供图形用户界面的基本元素，包括按钮、文本框、单选框、复选框等等，是HTML实现交互功能的主要接口，用户通过表单向服务器提交数据。 全局变量 答案:变量在过程外被声明，则它的作用域是整个脚本程序范围，可被所有过程引用，称之为全局变量。 局部变量 答案:变量在过程中被声明，则它的作用域仅局限于该过程，称之为局部变量。 事件 答案:事件是指计算机进行一定操作而得到的结果。 可析实体 答案:可析实体是一种由XML文本组成的实体。 统一资源定位器URL（Uniform Resource Locator） 答案:统一资源定位器URL（Uniform Resource Locator）是用来确定用户所需信息的确切位置。包括信息资源的名称及地址。 事件处理程序 答案:对事件进行处理的程序或函数称之为事件处理程序。 Application 答案:ASP内置对象，它用于存储和管理与该Web应用程序有关的信息，在一个ASP应用内让不同使用者共享信息。 域名服务系统（DNS）
北京师范大学网络教育 《大学英语精读三》作业答案 客观题部分： 选择题（每题1分，共20题） 参考答案： 1. B 2. C 3. C 4. D 5. A 6. A 7. A 8. A 9. C 10. D 11. A 12. B 13. B 14. D 15. B 16. A 17. B 18. D 19. A 20. A 主观题部分： 翻译题（每题1分，共10题） 1. The park is located right in the center of town. 2. If you want to make a complaint, you’d better follow the correct procedure. 3. That hairstyle is in fashion this year, but I am afraid it will be out of fashion next year. 4. She waited at the bus stop until the last bus came in. 5. Never before have I met such a kind person. 6. The play was so wonderful that I soon lost myself in the excitement of it. 7. Social activities never get in the way of her studies. 8. He’s working on a new project which has to be finished by the end of the year. 9. In pursuit of a healthier diet, people are eating more fish than they used to. 10.The disease is spreading, and all young children are at risk. 1
计算机软件一般分为系统软件和应用软件两大类，不属于系统软件的是（）。 A.操作系统 B.数据库管理系统 C.客户管理系统 D.语言处理程序 您的答案：C 题目分数：5 此题得分：5.0 2．第6题 网络学生对学习全过程进行自主管理的意识是（）。 A.自励意识 B.自动意识 C.自治意识 D.自觉意识 您的答案：C 题目分数：5 此题得分：5.0 3．第7题 保持微型计算机正常运行必不可少的输入输出设备是（）。 A.键盘与鼠标 B.显示器与打印机 C.键盘和显示器 D.鼠标和扫描仪 您的答案：C 题目分数：5 此题得分：5.0 4．第12题 人们在网络中可以完全不受时间、地域和资格等的限制而自由地学习，这体现了网络学习的（）。
B.虚拟性 C.交互性 D.自主性 您的答案：A 题目分数：5 此题得分：5.0 5．第14题 网络学生从外界获取评价并将此评价内化为良性刺激的意识是（）。 A.自评意识 B.自控意识 C.自励意识 D.自动意识 您的答案：C 题目分数：5 此题得分：5.0 6．第15题 进行网络学习，最理想的学习风格是（）。 A.抵抗型 B.顺从型 C.行为型 D.转化型 您的答案：D 题目分数：5 此题得分：5.0 7．第16题 断电后，会使存储的数据丢失的存储器是（）。 A.RAM B.硬盘 C.ROM D.软件
您的答案：A 题目分数：5 此题得分：5.0 8．第19题 网络学生要确立的正确学习观念是（）。 A.自律 B.他律 C.顺从 D.抵抗 您的答案：A 题目分数：5 此题得分：5.0 9．第3题 关于统考的说法，错误的有( ) A.从2005年开始，推行学生个人通过网络报名与缴费 B.提供网络报名缴费的网站是https://www.doczj.com/doc/a714408689.html,，缴费通过中国银联网上支付平台进行。 C.统考合格教育部发放合格证书。 D.统考成绩一般于考试结束50天后，在https://www.doczj.com/doc/a714408689.html,、网络学院及各学习中心查询。 您的答案：A,C,D 题目分数：5 此题得分：5.0 10．第8题 华南师范大学网络教育学院为https://www.doczj.com/doc/a714408689.html,平台开发了如下哪些手机客户端.( ) A.iPhone手机客户端 B.Symbian手机客户端 C.Android手机客户端 D.WindowsPhone手机客户端 您的答案：A,C,D 题目分数：5 此题得分：5.0 11．第17题
华师2017秋-大英3在线作业--1(大学英语精读(3))满分
1．第1题 — These are the pictures we took during this trip. — _________ ！ A.Oh, what beautiful pictures they are B.Oh, how beautiful pictures they are C.Oh, what beautiful pictures are they D.Oh, how beautiful pictures are they 您的答案：A 题目分数：2.5 此题得分：2.5 2．第2题 — I wonder if I could take a few days off work. — ________ . A.I’m sure you could leave off work B.I should say a few days is no problem C.Why, what’s the matter with you D.No, you mustn’t go away 您的答案：C 题目分数：2.5 此题得分：2.5 3．第3题 The teacher had no idea ________ these two students argued about. A.who B.what C.that D.why 您的答案：B 题目分数：2.5 此题得分：2.5 4．第4题 ；；Mercury freezes if it is cooled to ________ .<／font><／span><／p> ；；<／span><／font><／font><／span><／p> ；<／p> A.a low too temperature B.a too low temperature C.too low temperature D.too low a temperature 您的答案：D 题目分数：2.5
大学英语精读第三版(上海外语教育出版社董亚芬主编) 第三册Book3 Unit1~Unit10 翻译答案 Unit1 翻译 1) 发言人（spokesman）明确表示总统在任何情况下都不会取消（cancel）这次旅行。 The spokesman made it clear that the President would not cancel the trip under any circumstances. 2) 杰克对书架上那些书一本也不了解，所以他的选择是很随意的。 Jack didn't know anything about any of the books on the bookshelf, so his choice was quite arbitrary. 3) 随后发生的那些事件再次证明了我的猜疑（suspicions）是对的。(confirm) The subsequent events confirmed my suspicions once again. 4) 我认为我们应该鼓励中学生在暑假找临时工作。 I think we should encourage high school students to find temporary jobs / employment during their summer holidays. 5) 令我们吃惊的是，这位常被赞为十分正直的州长（governor）竟然是个贪官（corrupt official）。 To our surprise, the governor who had often been praised for his honesty turned out to be a corrupt official. 6) 少数工人得到提升（be promoted），与此同时却有数百名工人被解雇。 A few workers were promoted, but meanwhile hundreds of workers were dismissed.
1．第1题 多维数组之所以有行优先顺序和列优先顺序两种存储方式是因为( )。 A.数组的元素处在行和列两个关系中 B.数组的元素必须从左到右顺序排列 C.数组的元素之间存在次序关系 D.数组是多维结构，内存是一维结构 您的答案：A 题目分数：2 此题得分：2.0 2．第2题 3个结点可构成( )个不同形态的二叉树。 A.2 B.3 C.4 D.5 您的答案：D 题目分数：2 此题得分：2.0 3．第3题 下列排序算法中，当初始数据有序时，花费时间反而最多的是( )。 A.起泡排序 B.希尔排序 C.堆排序 D.快速排序 您的答案：D 题目分数：2 此题得分：2.0 4．第4题 要将现实生活中的数据转化为计算机所能表示的形式，其转化过程依次为( )。 A.逻辑结构、存储结构、机外表示 B.存储结构、逻辑结构、机外表示
C.机外表示、逻辑结构、存储结构 D.机外表示、存储结构、逻辑结构 您的答案：C 题目分数：2 此题得分：2.0 5．第5题 下列有关线性表的叙述中，正确的是( )。 A.元素之间是线性关系 B.线性表中至少有一个元素 C.任一元素有且仅有一个直接前趋 D.任一元素有且仅有一个直接后继 您的答案：A 题目分数：2 此题得分：2.0 6．第6题 若要在单链表中的结点*p之后插入一个结点*s，则应执行的语句是( )。 A.s-> next=p-> next; p-> next=s; B.p-> next=s; s-> next=p-> next; C.p-> next=s-> next; s-> next=p; D.s-> next=p; p-> next=s-> next; 您的答案：A 题目分数：2 此题得分：2.0 7．第7题 栈和队列都是( )。 A.限制存取位置的线性结构 B.顺序存储的线性结构 C.链式存储的线性结构 D.限制存取位置的非线性结构 您的答案：A 题目分数：2 此题得分：2.0
大学英语精读三作业三参考答案 注意：以下题目为样卷，实际考试中题目顺序可能会随电脑抽样有所调整，请 注意看清题目再做选择。 第一部分：交际用语（共5小题；每小题3分，满分15分） 1.What would you like to drink? 答案：orange juice, please 2.I'm engaged. - _______ on your engagement. 答案：Congratulations 3. I'd like to make a reservation for two days. My name is Li Ming. - _______ 答案：Single or double room? 4. Hello, may I speak to John? -__________ 答案：Just a second, please. 5.Thank you for your invitation. - ________. 答案：It's a pleasure Passage 1 No one is glad to hear that his body has to be cut open by a surgeon（外科医生） and part of it taken out. Today, however, we needn't worry about feeling pain during the operation. The sick person falls into a kind of sleep, and when he awakes, the operation is finished. But these happy conditions are fairly new. It is not many years since a man who had to have operation felt all its pain. Long ago, operation had usually to be done while the sick man could feel everything. The sick man had to be held down on a table by force while the doctors did their best for him. He could feel all the pain if his leg or arm was being cut off, and his fearful cries filled the room and the hearts of those who watched. Soon after 1770, Joseph Priestley discovered a gas which is now called "laughing gas".
大学英语精读三课后翻译题及答案 UNIT1-P16 1.发言人明确表示总统在任何情况下都不会取消这次旅行。 The spokesman made it clear that the President would not cancel the trip under any circumstances. 2. 杰克对书架上那些书一本也不了解，所以他的选择是很随意的。 Jack didn’t know anything about any of the books on the bookshelf, so his choice was quite arbitrary. 3.随后发生的那些事件再次证明了我的猜疑是对的。 The subsequent events confirmed my suspicions/ confirmed me in my suspicions once again. 4.我认为我们应该鼓励中学生在暑假找临时工作。 I think we should encourage high school students to find temporary jobs during their summer holidays. 5.令我们吃惊的是，这位常被赞为十分政治的州长竟然是个贪官。 To our surprise, the governor who had often been praised for his honesty turned out to be a corrupt official. 6.只有少数工人得到提升，与此同时却又数百名工人被解雇。 A few workers were promoted, but meanwhile hundreds of workers were dismissed. 7.如果有机会，约翰也许已成为一位杰出的画家了。 Given the chance, John might have become an outstanding painter. 8.数小时后，有人看见那个男孩在林子里瞎转。 Several hours later, the boy was found wandering around in the woods. UNIT3-P59 1.许多美国大学生申请政府贷款交付学费。 Many American students apply for government loans to pay for their education/tuition. 2. 除阅读材料外，使用电影和录像会激发学生学习的兴趣。 Besides reading materials, the use of films and videotapes can stimulate students' interest in a subject. 3.这位律师试图说服陪审团他的当事人是无辜的。 The attorney/lawyer tried to convince the jury of his client's innocence. 4. 提问常常会引起创造的火花。 Asking questions often generates the spark of creativity. 5.我已经把我的简历寄往几家公司，但尚未收到回复。 I have sent off my resume to several corporations, but haven't yet received a reply. 6. 她的结论是建立在对当前国际情况进行了认真的分析的基础上的。 Her conclusion is built on a careful analysis of current international affairs. 7.我们满怀期望地来参加会议，离开时却大失所望。 We came to the meeting full of expectations, yet we left very disappointed. 8.暂时他只得接受了一份给一家化妆品公司发促销传单的活儿。
若某计算机的主频为800MHz，每个CPU周期平均包含4个主频周期，每个指令周期平均有3个CPU周期，问： （1）该机平均指令的执行速度为多少MIPS（百万条指令每秒）？ （2）若主频提高到1000MHz，每个CPU周期平均包含2个主频周期，采用流水线方式，每个指令周期平均为个CPU周期，则平均指令的执行速度又是多少MIPS？ 答案: 解：（1）因为机器主频为f＝800MHz，所以主频周期T＝1/(800×106) ＝(μs)， 每个CPU周期平均包含4个主频周期，所以CPU周期T CPU＝4 T＝4×(μs)＝(μs) 指令周期T 指令 ＝3 T CPU＝3×＝(μs) 则指令的执行速度V1＝1/ T指令＝1/ (μs) ＝(MIPS) （或800÷（4×3）= (MIPS) ） （2）1000÷（2×）= (MIPS) 设机器字长为8位（运算时为9位），已知二进制数X＝－101101，Y＝100110， 试用双符号位补码求X＋Y和X－Y的值，要求写出计算机中的运算步骤，并指 出是否有溢出。 答案: [X] 补=1 [Y] 补 =000100110 [-Y] 补 =0
[X] 补 1 + [Y] 补 000100110 1 （无溢出） [X] 补 =1 + [-Y] 补 =0 1 所以 [X+Y] 补 =1 X+Y=-000111 [X-Y] 补 =1 X-Y=-1010011 一个32位的微处理器，它有16位外部数据总线，总线的时钟频率是40MHz，假定一个总线事务的最短周期是4个时钟周期，问这个处理器的最大数据传输率是多少？如果将数据总线的宽度扩展为32位，那么处理器的最大数据传输率提高到多少？这种措施与加倍外部总线时钟频率的措施相比，哪种更好？ 一种单地址指令格式如下所示，其中I为间接特征，X为寻址模式，D为形式地址。I，X，D组成该指令的操作数有效地址E。设R1为变址寄存器，R2为基址寄存器，PC为程序计数器，请写出下表中各种寻址方式名称。 OP I X D 寻址方式 名称 I X有效地址E 立即寻址 0 00 E=D 相对寻址 0 01 E=（PC）+D 变址寻址 0 10 E=（R）+D 寄存寻址 0 11 E=（R）+D，D=0直接寻址 1 00 E=（D） 相对间接寻址 1 01 E=（（PC）+D）变址间接式 1 10 E=（（R）+D） 寄存器间接寻址 1 11 E=（（R）+D），D=0 (1)立即寻址 (2)相对寻址 (3)变址寻址 (4)寄存寻址 (5)直接寻址 (6)寄存器间接寻址
一、阅读理解（共1道小题，共25.0分） 1. Sixty-year-old grandmother, Fiona McFee, is going to stop working next year and she decided to realize a childhood dream and sail around the coast of Scotland in a small boat. Although the inside of the boat is very cosy, it has no running water or electricity. Fiona says she can live without these things but she plans to take her small CD player, her hot water bottle and a bag of books to make sure life isn’t too uncomfortable. 2. We asked her if she was afraid of being at sea for so long. She said, “Well, I’m going to take a good compass (指南针). Anyway I’m not afraid of death because I love the sea---I just hope it loves me.”Fiona certainly has plenty of energy; in her spare time, she enjoys playing the piano, rock-climbing, canoeing and dancing. Although she is sixty, she doesn’t want to have a quiet and peaceful life. “I’m looking forward to having fun in the rest of my life and that’s exactly why I’d like to be a sailor for a while.” 1. The underlined word cosy in the first paragraph means ____ . A. bright B. dirty C. comfortable D. dark 2. When Fiona McFee said “---I just hope it loves me”, what she meant was ____. A. Of course, it loves me, since I love it. B. If I love it, it should love me. C. I hope it will bring me a safe sailing as a return for my love of it. D. I hope it will save my life when I am in time of danger. 3. The reason why she would like to have the sail is that ____. A. she thinks it will be very exciting B. she likes sports and enjoys canoeing C. she has decided to love the sea D. she wants to be still active when she gets old 4. What kind of person would you say the old woman is? A. Someone who does not show what she is feeling. B. Someone who is very proud and sure of her success. C. Someone who doesn’t use her head much. D. Someone who is open, honest and brave. 5. The best title for this passage is ____ . A. Life Begins at Sixty B. A Round Coast Sail C. An Old Woman Sailor D. An Unusual Hobby(爱好)
1.Do you think that making music and art compulsory subjects in schools would reduce some children’s enjoyment of them? 2.Bob’s one of those people who relish risk and danger-he’d be bored in a safe ,steady job. 3.Elizabeth is certainly talented enough to succeed in her career; she just doesn’t have enough confidence in her own abilities. 4.I’m sorry you’re in trouble, but as you made your decision on your own you’ll just have to face the consequence. 5.Many educators would be delighted to abolish exams, but they also worry that without them there would be too little incentive for students to work hard. 6.The teacher accidentally hit the boy’s hand with an eraser and was hence force known as “Dead-Eye Bean.” 7.If I had money ,I’d invest it all in internet companies. 8.Psychologist say that our behavior is influenced by many factors too subtle for us to consciously perceive. 9.He’s always had a passion for books. If he could work in a library, it would be a dream comes true. 10.Look at those three whispering in the corner again-they’re scheming something, I just don’t know what! 11.In a healthy relationship,the partners’strengths and abilities complement each other,rather than being identical. https://www.doczj.com/doc/a714408689.html,lions of dollars and lots of famous actors are not indispensable to the production of a successful film,but they help! 13.I never felt i had a right to expect any special privileges because of my university education. 14.The markeing strategy that Edward proposed would be brilliant if only he hadn’t forgotten about good business ethics. 15.It’s true that not having a car imposes some constraints,but owning one also complicates life in many ways. 16.According to Chinese law,every child is entitled to nine years of free edu. 17.Life should consist of more than juse a stuggle for surrival. 18.The sight of the helpless child aroused her maternal instinct . 19.T he winners of the contest were chosen randomly ,no consideration was given to age,gender or income. 20.He has lost the use of his limbs but he is still in possession of all his faculties. 21.Please give the highest priority to this very urgent. 22.She enjoy parts of her trip to India,but said she she found the poverty she saw there rather depressing . 23.When every student imagines that every other student is working harder and doing better, stress is the inevitable result. 24.It is my firm conviction that violence is never a reasonable solution to conflict. 25.Everyone jumped up when a piercing scream suddenly broke the silence, 26.In many cultures a memorial service is a joyful celebration, not a solemn event. 27.The recession has put increasing pressure on the job market, so employment prospects for this year’s graduates are unfortunately rather grim.
在无头结点的双链表中，指针P所指结点是第一个结点的条件是____。 答案: p-> prior==NULL 某无向图有28条边，则其顶点数最少为____。 答案: 8 在顺序表中做插入操作时首先检查____。 答案: 上溢或表满 查找表的逻辑结构是____。 答案: 集合 运算定义在逻辑结构上，算法定义在____结构上；运算指出“做什么”，算法指出____。 答案: 储存；怎么做 深度为k的二叉树，叶子数至多为____，叶子数至少为____。 答案: 2k-1、1 数组A[1..8][1..10]中，每个元素占3个单元，从首地址SA开始存放，若该数组按列存放，则元素A[8][5]的地址是____ 答案: SA+117 在150个结点的有序表中二分法查找，不论成功与否，键值比较次数最多为____。 答案: 8 下面程序段的时间复杂性为____。 for(i=0;i< n;i++) for(j=0;j< 10;j++) A[i][j]=0； 答案: O(n) 带头结点的单链表L为空的判定条件是____。 答案: L-> next==NULL n(≥1)个顶点的强连通图至少____条边，最多____条边。 答案: n、n(n-1) 排序算法的稳定性是指____。 答案: 对相同关键字排序前后相对位置不变 对400个结点的完全二叉树，度为1的结点数为____。 答案: 0 算法满足的五个重要特性是：____、____、____、输入、输出；其中区别于程序的地方是____。 答案: 有穷性、确定性、可行性；有穷性。
散列表中要解决的两个主要问题是：____、____。 答案: 散列函数的构造、冲突的处理 设循环链队列的长度为n，若只设尾指针，则出队和入队的时间复杂度分别是____和____。 答案: O(1)、O(1) 头指针为F、尾指针为R、带头结点的链队列为空的条件是____。 答案: R==F 在带头结点的单链表L中，若要删除第一个结点，则需执行下列三条语句： ____；L-> next=p-> next；delete p； 答案: p=L-> next 在邻接矩阵和邻接表上对图进行BFS或DFS遍历时，时间复杂性分别为____、____。 答案: O(n2)、O(n+e) 图的DFS遍历类似树的____遍历，是其推广。 答案: 先根 树的三种主要的遍历方法是：____、____和层次遍历。 答案: 先根、后根 n个结点的二叉链表中，指针总数为____个，其中____个指针为空。 答案: 2n、n+1 对长度为100的顺序表，在等概率情况下，查找成功时的平均查找长度为____，在查找不成功时的平均查找长度为____。 答案: 50/2、100(或101) 从n个结点的二叉排序树中查找一个元素，平均时间复杂性大致为____。 n) 答案: O(log 2 对广义表L=((a,b),c,d)进行操作head(tail(L))的结果是：____。 答案: c 非空单循环链表L中结点*p是尾结点的条件是____。 答案: p-> next==L 对n个顶点和e条边的无向图，采用邻接矩阵和邻接表表示时，求任一顶点度数的时间复杂性分别为____和____。 答案: O(n)、O(e/n)
奥鹏-东北师范大学英语精读（三）18秋在线作业1-2 作业试题参考答案 一、单选题共20题，60分 1、Without a wholehearted () to a keen forward-looking vision and deep insight, you cannot be a leader. Adetermination Bresolution Ccommitment Dobligation 【答案】本题选择：C 2、If you don’t have enoug h cash, I think you can make arrangement to buy the house Aon deposit Bwithout deposit Cin credit Don credit 【答案】本题选择：D 3、The manager has to be () because he could not keep his promise Areplaced Bpasted Cfrightened Dpatched 【答案】本题选择：A 4、Generous public funding of basic science would () considerable benefits for the country’s health, wealth and security Alead to Bresult from Clie in Dsettle down 【答案】本题选择：A 5、It is () that women should be paid less than men for doing the same kind of work. Aabrupt Babsurd Cadverse Daddictive 【答案】本题选择：B 6、Simple survival needs like hunger, thirst, and sexual desire are relatively (), and we quickly learn what particular discomfort is attached to the denial of these basic needs. Ainventory Bsacrifice Cdripping Dclear-cut 【答案】本题选择：D 7、We value reputation, respect, admiration, and the long-lasting happiness that comes
大学英语精读3课后答案【篇一：大学英语精读第三版第三册课后答案(含 close原文)】 >1) accent 2) turn against 3) a couple of 4) takes his time 5) fate 6) confirmed 7) witness 8) subsequent 9) stands a chance 10) trial 1) belief 2) brilliant 3) employment 4) has saved up 5) stood a chance 6) were awarded 7) presumably 8) conducted 9) casual 10) around (which student life) revolves 1) joe wrote to say that he had to put off his visit because of his illness. 2) despite the noise, they went on working as if nothing were happening. 3) traffic was held up for several hours by the accident. 4) called (up) on to speak at the meeting, i couldnt very well refuse. 5) mrs. stevenson looked in the cupboard and found there was not a single lump of sugar left. 6) it was the rumor that turned joe against his twin brother. 7) we wondered how sara was getting on in her new job. 8) although anne agreed with me on most points, there was one on which she was unwilling to give in. 9) visitors could photograph almost anything here without having to ask for permission.