首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
专升本
The United States is not the only country affected by the "computer revolution". All the major countries of the world have compu
The United States is not the only country affected by the "computer revolution". All the major countries of the world have compu
admin
2012-05-24
54
问题
The United States is not the only country affected by the "computer revolution". All the major countries of the world have computers, and the developing countries have also realized that computers play a big part in their economic development.
Usually what one sees is a machine that looks like a typewriter; it is called a computer terminal. But computers are also used in unseen ways. For example, they determine how much time there should be between traffic signals to prevent traffic problems and to keep millions of cars moving in an orderly flow. When you buy a car, a factory process that is controlled by a computer enables you to obtain a car with your own choice of colors and special features in just a few weeks’ time. In medical laboratories, computers have reduced the mistakes in testing, and they have saved doctors’ countless hours of work. Before long, medical histories of all Americans will be kept in computer "bands". If a person becomes ill far from his home, local doctors will be able to get his medical record immediately. In science, the computer has performed in minutes experiments which would have required thousands of hours of work by human hands and minds.
Most experts agree that computers are necessary to solve the problems of increasing population, city living, and public affairs. Without computers, the jobs of solving these problems would require millions of workers to do tons of paperwork. Before any computer can work on any problem, it must be told what to do. Someone must program the computer, step-by-step. At first this was done by having the programmer write out his instructions in the form of numbers which would be "understood" by the machine. Within a short time, attempts were made to perform a system that would enable humans to communicate more easily with machines. Different "languages" were developed by means of which the programmer could use words that had meanings for them, and another program in the machine would translate the words into the computer’s number system.
Without special training, it is impossible to understand exactly how a computer does its work. However, many people without scientific training use computers in their daily lives. In some American schools, for example, young children are being taught by computers for part of the school day.
The use of computers in school has worried some Americans. There are those who fear it will remove human element from teacher-student relationships. On the other hand, there are educators who consider computer program a valuable means of freeing teachers from the more boring and tiring tasks, thus enabling them to spend more time with a single student.
In education, as in business and industry, science and medicine, computers play an important part in almost every type of operation. The future will bring major advances in computer technology, which will aid man in his efforts to improve the world.
Which of the following best expresses the main idea of this passage?
选项
A、The world will enjoy the beautiful picture of the computers.
B、Computer technology will change the human life.
C、Computer would work freely in the future.
D、Computer would work with a great memory-storage and at highest speed.
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/NvGC777K
本试题收录于:
英语题库普高专升本分类
0
英语
普高专升本
相关试题推荐
Historianscan’ttelluswhen,whereor【71】thefirstfoodwascooked.Inearliest【72】whenpeoplehadeatentheirfood【73】,
A、Atabank.B、Atarailwaystation.C、Atanairport.D、Ataparking-lot.C
Pleasedon’t______(understand)me,Mysoleintentionistohelpyou.
Bionicsisarecentlydevelopedbranchofscience,whichhastremendouspotentialforimprovingthelifeofmankindinourconte
Largecompaniesneedawaytoreachthesavingofthepublicatlarge(大多数,整个).Thesameproblem,onasmallseals,facespractic
Thecurrentsituationurgedthatmoreattention______toproblemslessstudiedbythecitygovernment.
Itwasessentialthattheapplicationforms______backbeforethedeadline.
Everheardtheoneaboutthedoctorwhogavehispatientsixmonthstolive?Whenthemancouldn’tpayhisbill,thedoctorgave
ItwasaquarterpastnineasMaryhurriedintotheofficebuildingwhereshewasgoingtowork.Herbushadinched(蠕动)alongthr
Themurdererwasbroughtin,withhishands______behindhisback.
随机试题
领导者树立改革创新观念的必要性。
唯物主义的古代形态是【】
李某花2000元购得某省M公司生产的苦茶一批,发现其备案标准并非苦茶的标准,且保质期仅为9个月,但产品包装上显示为18个月,遂要求该公司支付2万元的赔偿金。对此,下列哪些说法是正确的?()
2016年3月6日,G造纸厂发生了一起因工人严重违反操作规程和缺乏救助常识而导致10人中毒,其中4人死亡的伤害事故。事故当日G厂工人于7时停机,经过注浆池中灌水排水的工序后,8时左右有2名工人下池清扫注浆池,当即晕倒在池中。在场工人在没有通知厂领导的情况下
在目前阶段,国家质检总局和海关总署开发采用的“电子通关单联网核查”系统,还需同时校验纸质的通关单据。
商业银行对不良个人住房贷款的处置方式有()。
首次提出山水画“三远”的论著是()
下列不属于附加刑的是()。
东汉末年,在官渡之战开打前,由于双方实力悬殊。很多人认为曹操必败,曹操下属的很多部将和大臣纷纷暗中给袁绍写信。准备一旦曹操失败以后就归顺袁绍。然而官渡之战中曹操打败了袁绍。并在清理袁绍军营中文书材料时。发现了自己部下写的那些信件。曹操的部下们因此而战战兢兢
设A为n×m矩阵,B为m×n矩阵(m>n),且AB=E.证明:B的列向量组线性无关.
最新回复
(
0
)