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【单选题】
Whatever Happens to Old Computers? You have just got a new computer and you are delighted with it.It is doing everything you wanted your new computer to do.But what are you going to do with your old computer? Have you ever wondered what other people do with their old computers? In the past they have often paid high prices for their old computers, but how much do you think these computers are worth now? Few people want to buy a computer that has become out of date or has been replaced by a newer model.Unfortunately, the only thing you can do with a computer that you have had for five or six years is to throw it away with your other garbage! What do many people do when they try to sell their old computers? Foolishly, they take into account its original cost and then reduce the price according to the age of the computer rather like a second-hand car.They are wrong.They forget that new computers are becoming cheaper every day, making old computers almost worthless~ In 1985, for example, a good computer cost over US $4,000.Ten years later its owner would he lucky to get $400. Although old computers are still more useful than old typewriters, you must be careful about buying a second-hand computer.The microchips in a computer may last a long time, but the hard disk will not.It will probably cost more to replace the hard disk with a new one than the computer itself is worth.Moreover, replacing the old processor in a computer is simply not worth the trouble as it will probably be incapable of running newer software.Ultimately, saving and repairing an old computer is like building a car from spare parts.It is far cheaper to buy a new car. One well-known computer magazine recently compiled a list of ten things to do with an old computer.One suggestion was to donate it to charity or give it as one of the small prizes ina competition.The final suggestion was to store it in a safe place and hope that it would become a collector's item in fifteen or twenty years though the article in the magazine admitted that.in fifteen or twenty years there may be so many old computers that they will all be worthless. Whatever you decide to do with an old computer will not alter the fact that it will be useless as a piece of technology in several years.The world of computers is quickly changing and eventually all computers will not only be integrated with video telephone and run CD ROM disks, but will also be able to perform. a countless number of tasks which as yet we cannot even imagine.All these uses will require much more advanced and powerful machines that will automatically condemn even the most advanced computer today to the garbage can of the twentieth century. 第 41 题 According to the passage, if a computer is old, you'd better____.
A.
repair it
B.
throw it away
C.
sell it at a high price
D.
put it in a safe place for future use
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举一反三
【单选题】1989年后召开的全国第三次环境保护会议上所做的工作是( )
A.
正式颁布环境保护基本法
B.
正式提出环境管理的新5项制度
C.
制定并确立环境保护为我国的一项基本国策
D.
提出了“我国环境与发展十大对策”
【简答题】假设某项目建设期投资借款本息之和为2000万元,借款偿还期为4年,年利率为10%,用等额还本,利息照付的方法,则第2年偿还利息为( )万元
【单选题】在《大医精诚》教学设计中,以下哪个环节的设计与化解教学难点无关:
A.
课上:养情怀
B.
课后:古文知识大通关
C.
课上:品内涵
D.
课上:立主旨
E.
课上:创情境
【判断题】有类定义如下: import java.io.IOException; public class Parent { public void doSome() throws IOException{} } 现在在此基础上,派生类如下: public class C2 extends Parent{ private void doSome(){} } 请问,子类定义能否通过编译?
A.
正确
B.
错误
【单选题】听力原文:W: How often did you write home? M: I used to write home once a week. What do you understand from the man's answer?
A.
He enjoys writing home every week.
B.
He never writes home once a week.
C.
He doesn't write home once a week now.
【多选题】下面数据中有效数据为三位的有()
A.
0.328
B.
43.52%
C.
7.132
D.
pH=4.28
【单选题】听力原文:W: How often did you write home M: I used to write home once a week. What do you know from the man's answer?
A.
He enjoys writing home every week.
B.
He never writes home once a week.
C.
He doesn't write home once a week now.
【判断题】有类定义如下: import java.io.IOException; public class Parent { public void doSome() throws IOException{} } 现在在此基础上,派生类如下: import java.io.IOException; import java.sql.SQLException; public class Child extend...
A.
正确
B.
错误
【单选题】下列关于我国环境标准工作的历史严格的说法,不正确的是( )。
A.
1973年8月,第一次全国环境保护工作会议通过了《工业“三废”排放试行标准》
B.
1995年2月,环境标准座谈会上提出了新的环境标准体系
C.
1994年5月,成立中国环境标志产品认证委员会
D.
1997年5月,成立中国环境管理体系认证指导委员会
【单选题】下列不属于核糖核苷酸的含氮碱基是:
A.
腺嘌呤
B.
胸腺嘧啶
C.
尿嘧啶
D.
鸟嘌呤
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