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
外语
Although 【21】______ circuits made computers smaller, the processing units still consisted 【22】______ a number of circuits
Although 【21】______ circuits made computers smaller, the processing units still consisted 【22】______ a number of circuits
admin
2010-07-06
76
问题
Although 【21】______ circuits made computers smaller, the processing units still consisted 【22】______ a number of circuits on separate chips. In 1971, an engineer working for Intel realized that a 【23】______ of circuits commissioned for an electronic calculator could all be put 【24】______ one chip, and that the resulting device could be used 【25】______ a general-purpose "computer on a chip". The result was the Intel 4004 -- the world’s first microprocessor. Physically, it consisted of a silicon chip in a protective ceramic capsule, with a set of metal pins sticking 【26】______ that connected it to other components in whatever 【27】______ it controlled. It 【28】______ 2,300 transistors, 【29】______ 60,000 operations per second, and could be used for any device -- including computers and robots -- that required a "brain" for accepting 【30】______ and following a program of 【31】______ to produce an output. Within five years, many very powerful microprocessors had 【32】______ .The invention of microprocessors 【33】______ the stage for the arrival of the microcomputer, or personal computer (PC)-- an affordable machine for 【34】______ The first PCs, in kit form, appeared in the mid 1970s, and by the mid-1980s machines such as the Apple Macintosh and those based 【35】______ a PC first 【36】______ by IBM in 1981 were popular throughout the world. The success of these machines led to an explosion of software, in 【37】______ a range of spreadsheet, word-processing, graphic, educational, and games programs. Since the 1980s, a number of strong-intertwined themes have 【38】______ the computer revolution forward, including a continuing increase in the processing power and decrease in the size and cost of PCs; a switch of emphasis from 【39】______ to linked machines, as evidenced by the growth of local area networks and the Internet; and the spread of computer applications into virtually every 【40】______ of home and business life.
【38】
选项
A、drive
B、drove
C、driven
D、drived
答案
C
解析
drive的过去分词形式是driven,过去式是drove,属不规则动词。
转载请注明原文地址:https://kaotiyun.com/show/oVDd777K
本试题收录于:
公共英语四级笔试题库公共英语(PETS)分类
0
公共英语四级笔试
公共英语(PETS)
相关试题推荐
HowlongwasMs.Bair’smarriage?
Ialwayseatbreakfast,andsuggestthatyoudotoo.Weallneedfoodinthemorningtosupplyourselves【C1】________sourcesofg
Ialwayseatbreakfast,andsuggestthatyoudotoo.Weallneedfoodinthemorningtosupplyourselves【C1】________sourcesofg
TheissueofonlineprivacyintheInternetagefoundnewurgencyfollowingtheSept.11terroristattacks,sparkingdebateover
TheissueofonlineprivacyintheInternetagefoundnewurgencyfollowingtheSept.11terroristattacks,sparkingdebateover
Itisoftensaidthatthesubjectstaughtinschoolsaretooacademicinorientationandthatitwouldbemoreusefulforchildr
Whatisthemainsubjectofthepassage?Knowledgeofthehistoryofsomebeadsmaybeusefulinthestudiesdonebywhichoft
Whilefashionisthoughtofusuallyinrelationtoclothing,itisimportanttorealizethatitcoversamuchwiderdomain.Iti
Thesehavebeenthebestoftimesformanyofthenation’stopuniversitiesandtheworstoftimesformiddle-incomefamiliesst
Nobodycanbereallyfreefromthesound.Whetherweliveinthemiddleofamoderncityorafarawayvillage,wearesurrounded
随机试题
要求信息资料收集人员有比较扎实的市场学专业知识的信息筛选方法是()
简述管理道德发展的三个层次六个阶段。
咯血的肺结核病人应采取的体位是()。
银甲丸主要用于治疗哪一证型的慢性盆腔炎
地籍图测量方法分()法和数字法两种。
三类防雷建筑物(防止直击雷)接地冲击电阻最大允许值为()。
为给客人留下良好的第一印象,导游人员应以(),表现出神采奕奕的风度来吸引旅游者。
那是一个极其黑暗极其龌龊的时代,除了______于王权靴下的草芥,任何生命都不能生长。然而,恰恰是______生命的统治,使自由成为一种______的渴望;恰恰是腐质土的堆积,迫使一种名叫崇高的生物直立起来,以流血的方式,不顾一切地生长。填入划横线
MichaelJacksonisfamousforhis______butMuhammadAliforhis______.Thepassagemainlytalksabout______.
Whataretheydoingnow?
最新回复
(
0
)