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
A computer is a machine designed to perform work mathematically and to store and select information that has been fed into it. I
A computer is a machine designed to perform work mathematically and to store and select information that has been fed into it. I
admin
2018-04-17
22
问题
A computer is a machine designed to perform work mathematically and to store and select information that has been fed into it. It is run by either mechanical or electronic means. These machines can do a great deal of complicated work in a very short time. A large computer, for example, can add or subtract nine thousand times a second, multiply a thousand times a second, or divide five hundred times a second. Its percentage of error is about one in a billion digits. It has been estimated that human beings making calculations average about one mistake per two hundred digits.
The heart of an electronic computer lies in its vacuum tubes, or transistors. Its electronic circuits work a thousand times faster than the nerve cells in the human brain. A problem that might take a human being two tears to solve can be solved by a computer in one minute, but in order to work properly, a computer must be given instructions—it must be programmed.
Computers can be designed for many specialized purposes—they can be used to prepare payrolls, guide airplane flights, direct traffic, even play chess. Computers play an essential role in modern automation in many plants and factories throughout the world.
The selection says that computers play an essential roles in______.
选项
A、automation processes
B、mathematical computations
C、traffic control
D、the development of mathematical theory
答案
A
解析
文章第三段最后一句说到“Computers play an essential role in modern automation in many plants and factories throughout the world.”其中“in modern automation”与A选项对应。
转载请注明原文地址:https://kaotiyun.com/show/8aiC777K
本试题收录于:
英语题库成考专升本分类
0
英语
成考专升本
相关试题推荐
Itiscertainthathewill______hisbusinesstohissonwhenhegetsold.
Alittleboyinvitedhismothertoattendhisschool’sfirstteacher-parentmeeting.Tothelittleboy’s【21】,shesaidshewould
Alittleboyinvitedhismothertoattendhisschool’sfirstteacher-parentmeeting.Tothelittleboy’s【21】,shesaidshewould
______amajordisasterwillgetustorealizethatwecan’tgoondestroyingtherainforestsoftheworld.
Walkingthroughthedryleavesonhiswayhome,Patthoughtofwhatabaddayinschoolithadbeen.Buteverydaywasabadday
Walkingthroughthedryleavesonhiswayhome,Patthoughtofwhatabaddayinschoolithadbeen.Buteverydaywasabadday
PeopleinBritainarelivinglongerandare【56】,【57】moreandmoremoneyisbeingspentonconsumergoods,【58】thelateststati
Thereisnocreaturethatdoesnotneedsleeporcompleteresteveryday.Ifyouwanttoknowwhy,justtrygoingwithoutsl
Noformofthinkingismoreinterestingthandreams."Brainwave"machineshaveshownthatdreamslastonlytwototenseconds,
Noformofthinkingismoreinterestingthandreams."Brainwave"machineshaveshownthatdreamslastonlytwototenseconds,
随机试题
对于有下列()情形之一的具体行政行为,人民法院可作出撤销判决。
养血育阴、泻火除热、益气固表同用的方剂是
类风湿关节炎的辅助检查,特异性较大的是
治疗肺炎球菌肺炎最常用的抗生素是
对于同一估价对象,宜选用两种以上的估价方法进行估价,如果估价对象适宜采用多种估价方法进行估价,应同时采用多种估价方法进行估价,则()。
2019年5月3日,甲公司以480万元购入乙公司股票60万股作为交易性金融资产,另支付交易费用10万元,增值税进项税额0.6万元。 (1)2019年6月30日,该股票每股市价为7.5元。 (2)2019年8月10日,乙公司宣告分派现金股利,每股0.2元
领队备案信息不包括()。
领导交给你一项任务,你如何确保明白领导的意图,并把任务完成好?
______,wewentoutforaswiminthelake.
上世纪50年代,人们的理想生活是“楼上楼下,电灯电话”。改革开放初期,人们的理想生活是拥有“老三件”——“手表,自行车,缝纫机”。而在进入新时代的今天,人民群众的理想生活又成了“有车有房,吃得健康”。追求美好生活,不同时代的理想生活之所以有着如此大的区别,
最新回复
(
0
)