华南理工2019春季大学英语B(二)平时作业
最近，你们班就“是否应该帮助陌生人”展开了讨论，同学们就这一话题意见不一，你的看法如何?根据所提供的信息，以“Should We Help Strangers?”为题，写一-篇短文。
要求: 1)表达清楚，语法正确，上下文连贯;
2)必须包括表格中所有的相关信息，并适当发挥;
3)词数: 100左右
参考词汇:美德virtue
As we all know, helping others is considered as a kind of noble virtue in China for many years. As a matter of fact, helping others can enhance our sense of morals and responsibilities especially.
They explain that a huge number of strangers in trouble are kind. They will be grateful to you and you may get something in return if you offer helps to them. Therefore, it is high time that we should try to help strangers. However, some people hold the view that helping strangers is meaningless for the reason that it may bring you trouble or danger as consequence.
From my point of view, helping strangers is a kind thing. So it is high time that we should spare no effort to do whenever it is convenient for us. Furthermore, we can learn a lot from the process of helping others. Besides, what should be underlined is that whenever helping strangers we should keep a clear mind. Only in this way, can our society change for the better.
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2017学年度期末考试 《大学英语B（一）》模拟题答案 教学中心：专业层次： 学号：姓名：座号： 注意事项：1．本试卷共五大题，满分100分，考试时间90分钟，闭卷； 2．考前请将以上各项信息填写清楚； 3．所有答案必须做在答题纸上,做在试卷、草稿纸上无效； 5．考试结束，试卷、答题纸、草稿纸一并交回。 College English Achievement Test Band One Part IUse of English (10 points) Directions:There are 10 incomplete dialogues. For each dialog there are 4 choices marked A, B, C, and D. Choose the ONE answer that best completes the dialogue. Then mark the corresponding letter on the Answer Sheet. 此部分题答案用2B铅笔做在答题纸上 1.----How are you doing, Frank ---- __________________. A.Great, thanks! B.How are you doing C.How do you do D.It’s nice meeting you! 2. ----I was told that you might have failed in the exam. ----________________ A.Are you right B.Are you happy C.Are you serious D.Are you tired 3. ----What color is your favorite ----________________. A.Yellow is my favorite B.You are my favorite C.I don’t have favorites D.It’s my favorite 4. ----________________ ----Great! Walking is one of my favorite pastimes B.Don’t you love walking A.What are your feelings about walking
2019华南理工大学-操作系统平时作业(20190
1.计算机配置操作系统的作用是什么？ 答：提高方便性，一个未配置操作系统的计算机是极难使用的。有效性，CPU的高速和外部设备的相对低速是计算机硬件无法逾越的基本矛盾，如果没有操作系统的管理，CPU和外部设备就会经常处于空闲状态。提供应用软件的运行环境，操作系统位于应用软件和硬件之间，应用软件不能脱离操作系统而独立运行。 2.简要说明操作系统有哪些基本特征？ 答：并发、共享、虚拟、异步 3．什么是前趋图？画出下面几条语句的前趋图。 S1:a=x+y S2:b=z+1 S3:z=a*b S4:c=a-b S5:w=c+z 答：前趋图是 4．什么情况会引起进程的创建？什么情况会引起进程的终止？ 答：引起进程创建的事件。 1，系统生成时，系统会创建承担资源分配和管理的系统进程。 2，用户作业调入系统时，作业调度程序会为其创建进程。 3，层次结构系统中，为完成一些可并发执行的工作，进程可以创建一些附属进程 进程的终止 1，正常完成进程自行执行一个操作系统服务调用，表示它已经结束运行。 2，超过时限进程运行时间超过规定的时限3，无可用内存系统无法满足进程需要的内存空间。 4，越界进程试图访问不允许访问的内存单元
5，保护错误进程试图使用不允许使用的资源或文件，或者试图以一种不正确的方式使用，如往只读文件写入。 6，时间超时，进程等待某一事件发生的时间超过了规定的最大值。 7,I/O失败在输入或输出期间发生错误，如找不到文件、在超过规定的最大努力次数以后仍然读/写失败，或者无效操作 8，无效指令进程试图执行一个不存在的指令。 9，特权指令，进程试图使用为操作系统系统保留的指令 5.处理机中存在哪几种调度？作用各是什么？ 答：处理器调度分为：高级调度，中级调度，低级调度 高级调度主要任务：在多道批处理操作系统中，从输入系统的一批作业中按照预订的调度策略挑选若干作业进入主存，为其分配所需资源，并创建作业的响应用户进程后便完成高级调度任务。 中级调度：根据主存资源决定主存中所能容纳的进程数目，并根据进程的当前状态来决定辅助存储器和主存中进程的对换。 低级调度：根据某种原则决定就绪队列中的哪个进程或者内核级线程获得处理器，并将处理器出让给它使用。 6．什么是资源分配图？右边的资源分配图说明系统的资源占 有和请求情况是怎样的？系统是否有死锁？ 答： 资源分配图是一种有向图 系统没有死锁 7.某分页管理系统页面大小为1KB，逻辑地址3380B对应的页号和页内地址各是多少？ 答：3380B转换二进制为 0011 0011 1000 0000 1011 由页面大小为1kb可知页号位和页面大小（偏移）均占10位 则原逻辑地址可划分为0011 0011 10|00 0000 1011 页号为：0011 0011 10 页内地址为：00 0000 1011
(完整版)春季高考英语试题3
1. —Kate, do you have __________ pen pal? —Yes, I do. I have one in China. A. a B. an C. the D. / 2. —Does Miss White like sports? —Yes, _______favorite sport is tennis. A. he B. she C. his D. her 3. —Are your parents at home, Jane? —No. They _______ taking a walk in the park. A. do B. are C. will D. have 4. I really enjoy the noodles and vegetables. They _________ delicious. A. stay B. feel C. taste D. sound ( )5. He took water to drivers _____ cars were labelled “volunteers”. A.which B. whose C. that D.who ( )6. _______ he was tired , Yang Gang felt proud of himself. A As B. When C. Unless D. Although ( ) 7. 一Thank you very much． ---- A Thanks a lot B．Oh，yes，thank you C．That’s all right D．The same to you ( ) 8. —Would you like to go and watch the football game with me? —. A. Not at all B. Excuse me, I can't C. Yes, I'd love to D. That's right ( ) 9. ______ soldiers, fire fighters and health care workers, ordinary people also offered help. A. Except B. Beside C. Besides D. Except for ( )10. Some old people have difficulty ______. A. to walk B. in walk C. walking D. of walking ( )11 –Dad, this is my friend , Dick . -- . A. Thank you B. OK C. Nice to meet you , Dick ( ) 12. my name card . A. Here are B. Here is C. Are here D. Is here ( ) 13. In order to celebrate World Environment Day, a special students’fashion show ________ in Shen Zhen on 4 June. A. have taken place B.took place C. was happened D. was taken place ( ) 14. She can’t wait ______ the models display her clothes. A. seeing B. to see C. having seen D. to be seen ( ) 15. The girl _____ won the fashion show is from our school. A. who B. when C. which D. why （）16 Tony is not as clever as Lucy, but he works __________ than her. A. hard B. harder C. hardest D. the hardest （）17—does your school have sports meetings?
大学英语B(一)_随堂练习2019春华南理工大学网络教育答案
... 大学英语B（一）Unit One
1.(单选题)They cancelled the basketball game because of a _____ of interest. A. lack B. need C. lot D. common 答题：A.B.C.D. （已提交） 参考答案：A 问题解析： 2.(单选题)Learning is a long and exciting ______. A. situation B. process C. person D. sign
答题：A.B.C.D. （已提交） 参考答案：B 问题解析： 3.(单选题) I ' m _____because I have received lots of presents. A. pleased B. unhappy C. angry D. resent 答题：A.B.C.D. （已提交） 参考答案：A 问题解析： 4.(单选题)I got confused, too. I seem to have ______ in dealing with
numbers .......... ...
challengeC ．A ．knowledgeB．development difficulty．D （已提交）C.D. 答题：A.B. D参考答案： 问题解析： )单选题5.(People use more words when they ______ with each other. associatecommunicateA ．completeB．C ．a cquireD． （已提交）B.C.D. 答题：A. B参考答案：
2017年华南理工大学网络教育计算机应用基础平时作业
1. 画出冯诺依曼结构模型，并简述冯.诺依曼原理的基本内容。 答：冯诺依曼体系结构有以下特点： ）计算机处理的数据和指令一律采用二进制数的形式表示； 1（）指令和数据不加区别混合存储在同一个存储器中；（2 （3）顺序执行程序的每一条指令；）计算机硬件由控制器、运算器、存储器、输入设备和输出设备4（五大部分组成。程序执行过程实际上是不断的取指令、分析指令、执行的过程。 冯诺依曼的计算机本质上讲是采取串行顺序处理的因为其结构特点，工作机制，即使有关数据已经准备好，也必须逐条执行指令简述启动控制面板的常用方法。（至少列出三种）2. Windows 7为例）答：启动的方法有（以）点开始，选择控制面板打开。1（． （2）打开我的电脑，选择控制面板打开。 （3）点开始-运行，输入命令control，回车打开控制面板。 3. 什么是存储器？内存储器与外存储器之间有什么异同点？
答：(1)计算机存储器是记忆部件，用来存放程序和数据，是计算机的重要组成部分。计算机中全部信息，包括输入的原始数据、计算机程序、中间运行结果和最终运行结果都保存在存储器中。它可分为：内部存储器,外部存储器。 A.内存（内部存储器）：其作用是用于暂时存放CPU中的运算数据，以及与硬盘等外部存储器交换的数据，只要计算机在运行中，CPU就会把需要的数据调到内存中进行运算，当运算完成后CPU再将结果传送出来，内存的运行也决定了计算机稳定快慢的运行。 B.外存（外部存储器）一般用于掉电存储，比如硬盘、U盘、移动硬可以存储程序代码或用户数据资料。 (2)内存和外存主要的区别： A.速度不同。内存要比外存速度至少快上百倍，外存通常较慢，运行时要先加载到内存运行。 B.容量不同。内存容量一般就几个G，大的也就是16G、32G等，而外存，比如硬盘，随便就是几个T。 盘或者磁片做的硬盘都相对U做的Flash而内存很贵，成本不同。C. 内存来讲比较便宜。 4、易失性不同。内存关机断电数据就会全部丢失，而外存掉电后能保持记忆不丢失，数据一直都在。 4. 简述计算机的工作原理。 答：计算机在运行时，先从内存中取出第一条指令，通过控制器的译码，按指令的要求，从存储器中取出数据进行指定的运算和逻辑操作等加工，然后按地址把结果送到内存中去。然后再取出第二条指令，
华南理工大学英语B第三次作业答案
A. B. D. The high quality and reasonable price make the customers have strong A. B. D. More practice can help you to get ________ of your shyness in public. A. B. D. To forget is natural ________; to remember is unnatural and require A. B. D.
A. B. D. There is no reason for an able man to ________ himself that he can’t A. B. D. Erase the negative notion and adopt a ________ spirit, and you gain A. B. D. ________ makes success a certainty, while inconstancy often results A. B. D. Unit Two A. B. D. Life without passion would be ________.
A. B. D. We are supposed to ________ nothing but dreams. A. B. D. Many people felt ________ to help the victims after being told the A. B. D. In the U.S., there are some limits on what you can ask or expect A. B. D. The sex discrimination goes ________ the principle of equality. A. B. D. Really friendly people respect everyone ________. A. B. D. Unit Three