相关试题
【判断题】
外(辅)存比主存的存储容量大、存取速度快
【判断题】
动态RAM和静态RAM都是易失性半导体存储器
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引入虚拟存储器的目的是为了加快辅存的存取速度
【判断题】
多级存储体系由Cache、主存和辅存构成
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指令周期是指人CPU从主存取出一条指令开始到执行这条指令完成所需的时间
【判断题】
控制存储器是用来存放微程序的存储器,它比主存储器速度快
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80X86的数据传送指令MOV,不能实现两个内存操作数的传送
【判断题】
随着半导体集成电路的发展,外部设备在计算机系统硬件的价格中所占的比重将越来越低
【判断题】
所有的数据传送方式都必须由CPU控制实现
【判断题】
大多数微机总线由地址总线、数据总线和控制总线组成,因此,它们是三总线结构的
【判断题】
在计算机总线中,地址信息、数据信息和控制信息不能同时出现
【判断题】
计算机使用总线结构的主要优点是便于积木化,同时减少了信息传输线的数目
【判断题】
任何类型的计算机都包含地址总线、数据总线和控制总线
【判断题】
地址总线的特点是可双向传输,控制总线的特点是双向传输
【填空题】
36.在一个8位二进制数的机器中,补码表示数的范围从___ ___到___ ___,这两个数在机器中的补码表示分别为___和___ ,而数0的补码表示为___ 。
【填空题】
2.计算机的硬件包括 ___ 、 ___ 、 ___ 、 ___ 、 ___ 五部分。
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3.存储器分为 ___存储器) 和 ___存储器) 。在CPU运行程序时,必须把程序放在 ___ 。
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5.计算机的运算精度主要由计算机的 ___ 决定, ___ 越 ___ ,则计算机的运算精度越高。
【填空题】
7.总线一般可分为三类,它们分别是 ___ , ___ 和 ___ 。
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8.计算机软件一般可分为 ___ , ___ 和 ___ 。
【填空题】
20.在浮点加减法运算中,当运算结果的尾数的绝对值大于1时,需要对结果进行 ___ ,其操作是 ___ 。
【填空题】
21.对存储器的要求是 ___ ___、 ___ ,为解决这三者的矛盾,计算机、采用 ___ 体系结构。
【填空题】
37.微程序控制器的核心部件是 ___ ,它一般用 ___ 构成。
【填空题】
41.微程序设计技术是利用 ___ 方法设计 ___ 的一门技术。
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44.保存当前栈顶地址的寄存器叫 ___ 。
【填空题】
47.计算机的主机包括 ___ , ___ , ___ 。
【填空题】
77.计算机中各功能部件是通过 ___ 连接的,它是各部件间进行信息传输的公共通路。
【填空题】
78.CPU内部的总线是 ___ 级总线,也叫内部总线。
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84.总线 ___ 技术可使不同的信号在同一条信号线上传输,分时使用。
【填空题】
98.按并行等级技术分类,流水线可分为 ___ 、 ___ 、 ___ 三类。
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101.8位二进制补码所能表示的十进制整数范围是 ___ 至 ___ ,前者的二进制补码表示为 ___ ,后者的二进制补码表示为 ___ 。
【填空题】
102.浮点数表示中,数据的范围由 ___ 的位数决定,数据的精度由 ___ 决定 。
【填空题】
104. 每条指令由两部分组成,即 ___ 部分和 ___ 部分。
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【填空题】
controversial,assess, resolve,decrease,alter,abandon,indicate,undermine,compromise, conventional
I had to [ ] one of my email accounts as it was filled with junk mail
【填空题】
controversial,assess, resolve,decrease,alter,abandon,indicate,undermine,compromise, conventional
Darwin's theory of evolution remains[ ] partly because it challenges the religious belief that God created man
【填空题】
advocate,involve,confine,respond,subsequent ,distinct ,intense, fulfill,circumstance, reconcile
He suggested a small but [ ] improvement on our former plan; I really appreciate it.
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in sb. 's words,count on,make sense of ,reserve for, shield from,call on, sum up, relate to ,in need,
be/ get caught up in
She held her hand above her eyes to [ ]them [ ] the sun so that she could see more clearly the man in front of her
【填空题】
in sb. 's words,count on,make sense of ,reserve for, shield from,call on, sum up, relate to ,in need,
be/ get caught up in
The boy studied the signs for over an hour,but still could not [ ]them, so he turned to his teacher for help
【填空题】
in sb. 's words,count on,make sense of ,reserve for, shield from,call on, sum up, relate to ,in need,
be/ get caught up in
They [ ] the developed countries to commit more money to protecting the environment
【填空题】
in sb. 's words,count on,make sense of ,reserve for, shield from,call on, sum up, relate to ,in need,
be/ get caught up in
We will continue to care for those [ ] and work to establish a society that is generous and prosperous
【填空题】
in sb. 's words,count on,make sense of ,reserve for, shield from,call on, sum up, relate to ,in need,
be/ get caught up in
Many people [ ]careers and raising kids so that they forget that their marriages also need to be taken good care of
【填空题】
in sb. 's words,count on,make sense of ,reserve for, shield from,call on, sum up, relate to ,in need,
be/ get caught up in
My most favorite program is the one that deals with scientific subjects that ordinary people can [ ]
【填空题】
in sb. 's words,count on,make sense of ,reserve for, shield from,call on, sum up, relate to ,in need,
be/ get caught up in
Finally, I would like to [ ]by saying that it has been a tremendous pleasure to work with you all
【填空题】
in sb. 's words,count on,make sense of ,reserve for, shield from,call on, sum up, relate to ,in need,
be/ get caught up in
He is a person that you always [ ]when you need help.
【填空题】
in sb. 's words,count on,make sense of ,reserve for, shield from,call on, sum up, relate to ,in need,
be/ get caught up in
This restaurant is very popular because it has some separate, smaller rooms [ ] families with small children
【填空题】
in sb. 's words,count on,make sense of ,reserve for, shield from,call on, sum up, relate to ,in need,
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Betty loves reading.[ ],“Reading is the most wonderful thing in the world.”
【填空题】
open the door to,In advance,all at once,reap the benefits (of), make the most of,over time, get by, stand a chance (of),remind of, take pleasure in,
Every one of you has made a contribution and I [ ] knowledging what each of you has done to make this academic convention such a success.
【填空题】
open the door to,In advance,all at once,reap the benefits (of), make the most of,over time, get by, stand a chance (of),remind of, take pleasure in
They all tried to talk [ ], but I couldn't hear anything they said
【填空题】
open the door to,In advance,all at once,reap the benefits (of), make the most of,over time, get by, stand a chance (of),remind of, take pleasure in,
Yellow flowers in the field always [ ] me [ ] my childhood in the countryside
【填空题】
open the door to,In advance,all at once,reap the benefits (of), make the most of,over time, get by, stand a chance (of),remind of, take pleasure in,
We have been practicing for so long and so hard that our team should [ ]winning the game
【填空题】
open the door to,In advance,all at once,reap the benefits (of), make the most of,over time, get by, stand a chance (of),remind of, take pleasure in,
Research on genes will [ ] exciting new medical treatments.,
【填空题】
open the door to,In advance,all at once,reap the benefits (of), make the most of,over time, get by, stand a chance (of),remind of, take pleasure in,
My family [ ] on my father's unemployment benefit after he lost his job
【填空题】
open the door to,In advance,all at once,reap the benefits (of), make the most of,over time, get by, stand a chance (of),remind of, take pleasure in,
Many subway riders read books or listent music in order to [ ] their time on the way to work
【填空题】
open the door to,In advance,all at once,reap the benefits (of), make the most of,over time, get by, stand a chance (of),remind of, take pleasure in,
In order to make sure he would be able to attend the meeting, I called him up two weeks [ ]
【填空题】
open the door to,In advance,all at once,reap the benefits (of), make the most of,over time, get by, stand a chance (of),remind of, take pleasure in,
In order to [ ]physical exercise, you have to exercise regularly and for at least half an hour each time
【填空题】
embarrass,polish, emotional, etticiency,curb ,await, donation ,dump,stuff ,historical
Mary was a careful speaker, every word seemed to have been [ ] before it was allowed to escape through her lips
【填空题】
embarrass,polish, emotional, etticiency,curb ,await, donation ,dump,stuff ,historical
He has a special feeling for the brilliant birds, and each spring he eagerly [ ] their return
【填空题】
embarrass,polish, emotional, etticiency,curb ,await, donation ,dump,stuff ,historical
Thanks to the [ ] of air transport,everyone is free to go anywhere at any time
【填空题】
embarrass,polish, emotional, etticiency,curb ,await, donation ,dump,stuff ,historical
John believes that the [ ] of food to the hungry is more helpful than giving money
【填空题】
embarrass,polish, emotional, etticiency,curb ,await, donation ,dump,stuff ,historical
When she heard it was snowing in the city they were going to, she [ ] two more sweaters into her bag.
【填空题】
embarrass,polish, emotional, etticiency,curb ,await, donation ,dump,stuff ,historical
During our stay in Europe we visited many places of [ ] interest, including several castles
【填空题】
embarrass,polish, emotional, etticiency,curb ,await, donation ,dump,stuff ,historical
The wedding ceremony of my sister was a very [ ] experience for our family
【填空题】
embarrass,polish, emotional, etticiency,curb ,await, donation ,dump,stuff ,historical
He was [ ]when he discovered that he didn't have enough money to pay for the red wine he had ordered
【填空题】
embarrass,polish, emotional, etticiency,curb ,await, donation ,dump,stuff ,historical
The local government is pressed to find new places to [ ] dump waste
【填空题】
embarrass,polish, emotional, etticiency,curb ,await, donation ,dump,stuff ,historical
The new system designed to [ ] harmful emissions排放物) from factories will be put into use soon
【填空题】
explore ,transmit, resource, emerge,yield, pose, assume, confidence,inherit, comprehensive
It is so difficult to [ ] the bottom of the ocean because some parts are very deep.
【填空题】
explore ,transmit, resource, emerge,yield, pose, assume, confidence,inherit, comprehensive
It was about 30 seconds before Alex [ ] from the water, we were quite scared
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explore ,transmit, resource, emerge,yield, pose, assume, confidence,inherit, comprehensive
We often [ ] that when other people do the same things as we do, they do them,for the same reasons; but this assumption is not always reasonable
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explore ,transmit, resource, emerge,yield, pose, assume, confidence,inherit, comprehensive
There is widespread concern that the rising unemployment may [ ] a threat to social stability.
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explore ,transmit, resource, emerge,yield, pose, assume, confidence,inherit, comprehensive
After a(n) [ ] physical exam, my doctor said I was in good condition except that my blood pressure was a little high
【填空题】
explore ,transmit, resource, emerge,yield, pose, assume, confidence,inherit, comprehensive
7 It is well known that China is a country with rich natural [ ] and a very big population.
【填空题】
explore ,transmit, resource, emerge,yield, pose, assume, confidence,inherit, comprehensive
Some people believe that the earth can [ ] enough food to support at least twice its present population
【填空题】
explore ,transmit, resource, emerge,yield, pose, assume, confidence,inherit, comprehensive
Sam [ ] the gift of imagination from his family, but he lacked the driving power to take action