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
102
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
Ahobbycanbealmostanythingapersonlikestodoinhissparetime.Hobbyists【B1】______pets,buildmodelshipsanythingap
Inthispart,youareallowed30minutestowriteacompositiononthetopic"Advertisements".Youshouldwriteatleast120wor
______thefinancialmeanstoremainindependentEdisonwascompelledtoseekemploymentasanighttelegraphoperator.
汤姆直到做完作业后才看电视。
Ifyou’redrivinginBrooklyn,Ohio,andfindyourselfattractedbyyoursurroundings,resisttheurgetogetholdofyourcell
Wetooksomefantasticphotos,but______(fortunate)thefilmgotdamaged.
Youshouldhaveto______yourwayofthinkingtothenewlifestyle.
Television,itisoftensaid,keepsone【C1】______aboutcurrentevents,allowsonetofollowthe【C2】______developmentinscience
要在学习上取得进步,学生需要具备独立学习的技能,而不是事事都要依靠老师。
Currentincomeformostconsumersistheirwagesorsalaries.Thisincomeisusedtopayregularandday-to-dayexpensessuchas
随机试题
在法律实务中,律师工作的基础是
A.4小时B.24小时C.7天D.14天E.3天未打开的无菌包在夏季可保存
()是国家调节经济的重要手段,是实现调控目标的工具。
下列各项中属于建设项目基本预备费的是()。
企业最优的资本结构应是()的资本结构。
张某以总价600万元购买了一间商铺用于自己经营。在这600万元的购买总价中,权益资本为300万元,其余为银行提供的信贷资金。经市场分析和预测,在还款期内,张某经营该商铺的年平均税前利润预计为85万元,年平均利息支出2.4万元,年平均税后利润预计为60万元。
政府投资具有的特点是()。
生活不会依我们的意愿而旋转,我们无法左右的东西太多,可以把握的,只有自己的心态。不是每个千里马都能遇到伯乐,不是每个机会都人人平等,不是每一次考试都会因为你努力而成绩斐然。生活有时也会装成个骗子,它玩弄你但也考验你,它也告诉我们,“假如生活欺骗了你,不要忧
Theearliestdiscoveredtracesofartarebeadsandcarvings,andthenpaintings,fromsitesdatingbacktotheUpperPaleolithi
Unlessallthemembersagreeto_______totheplan,theremaybefurtherdevelopmentinthecourseofaction.
最新回复
(
0
)