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
With a tremendous roar from its rocket engine, the satellite is sent up into the sky. Minutes later, at an altitude of 300 miles
With a tremendous roar from its rocket engine, the satellite is sent up into the sky. Minutes later, at an altitude of 300 miles
admin
2007-12-11
63
问题
With a tremendous roar from its rocket engine, the satellite is sent up into the sky. Minutes later, at an altitude of 300 miles, this tiny electronic moon begins to orbit about the earth. Its radio begins to transmit a staggering amount of information about the satellite’s orbital path, the amount of radiation it detects, and the presence of meteorites. Information of all kinds races back to the earth. No human being could possibly copy down all these facts, much less remember and organize them. But an electronic computer can.
The marvel of the machine age, the electronic computer has been in use only since 1946. It can do simple computations—add, subtract, multiply, and divide—with lightning speed and perfect accuracy. It can multiply two 10-digit numbers in 1/1, 000 second, a problem that would take an average person five minutes to do with pencil and paper. Some computers can work 500, 000 times faster than any person can.
Once it is given a program, that is, a carefully worked-out set of instructions devised by a technician trained in computer language, a computer can gather a wide range of information for many purposes. For the scientist it can get information from outer space or from the depths of the ocean. In business and industry the computer prepares factory inventories, keeps track of sales trends and production needs, mails dividend checks, and makes out company payrolls. It can keep bank accounts up to date and make out electric bills. If you are planning a trip by plane, the computer will find out what route to take and what space is available.
A computer can calculate______.
选项
A、with lightning speed
B、accurately
C、with a speed 500, 000 times faster than a person
D、all above
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/kBLC777K
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
已知函数y=sinχ,则y(10)()
Haveyou【B1】______askedyourselfwhychildrengotoschool?Youwillprobablysaythattheygo【B2】______theirownlanguagea
In1917,Russiawasinchaos.Theeconomywascollapsing,therewerefoodshortagesandthecountrywassufferingheavylossesi
InAmericansociety,one’ssuccessismeasuredby______.TheimmigrantswenttoAmericamainlyto______.
InAmericansociety,one’ssuccessismeasuredby______.Accordingtothepassage,thenumberoffactorsthatcontributedtoth
______youwillneverconvincehim.
She______Englishsinceshewasachild.
A、quitecomplexB、quitesimpleC、expensiveD、cheapB推理题,从原文中的第二段可以看出,B项是符合题意的。
IftheUnitedStateshadbuiltmorehomesforpoorpeoplein1955,thehousingproblemsnowinsomepartsofthecountry______s
Althoughheisabsolutelyconvincedthattheplanwillwork,I’mstillabitskeptical______thefeasibility(可行性)ofit.
随机试题
大道之行也天下为公选贤与能讲信脩睦故人不独亲其亲不独子其子使老有所终壮有所用幼有所长矜寡孤独废疾者皆有所养男有分,女有归。货恶其弃于地也,不必藏于己。力恶其不出于身也,不必为己。是故谋闭而不兴,盗窃乱贼而不作。故外户而不闭,是谓大同。《礼记·礼运·大同》
A.阵发性剑突下钻顶样疼痛伴呕吐B.突发性上腹剧痛伴腹膜刺激征C.外伤后剧烈腹痛伴休克D.上腹部绞痛伴畏寒、发热E.腹痛呕吐便闭,肠鸣音亢进或消失肝脾破裂()
护理质量控制和监测评价的指标有
在小儿年龄分期中,幼儿期是指
关于免疫对机体的叙述正确的是()
不能制止同事违规行为的要及时报告()。
为了改变传统课程过分强调学科本位的现象,新课程注重联系学生经验和生活实际,提倡和追求不同学科间的彼此关系,这体现的新课程的结构特征是()。
设y=f(x)是由方程确定的函数,且满足f(1)=1.求曲线y=f(x)在点(1,1)处的曲率;
Large,multinationalcorporationsmaybethecompanieswhoseupsanddownsseizeheadlines.Buttoafargreaterextentthanmos
Itwasaboldideatobuildapowerstationinthedeepvalley,butit______aswellaswehadhoped.
最新回复
(
0
)