B.Only half of the information they receive is useful.
C.Over 60 percent of them prefer to use the telephone.
D.Some of them have to read at least 100 emails every day.
17.Telephone calls cause a problem because ________.
A.they take up the time to receive and send emails
B.they are often not answered
C.they are mostly not about business
D.they may lead to change of work schedule
18.How do some companies try to solve the problem of information overload?
A.They start to give staff a pay rise.
B.They plan to employ more people.
C.They provide employees with more advanced equipment.
D.They organize lectures on how to reduce stress.
19.What is the major issue discussed in this text?
A.Poor management leads to inefficiency at work.
B.Junk mail is causing big trouble.
C.Whitecollar workers suffer from information overload.
D.Better computers are in need in workplaces.
Ⅲ.阅读填空根据短文内容,从短文后的七个选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。green computing is becoming one of the most popular trends. __20__
The term “green computing” is one that is being used in many different markets and areas all over the world in today's global technology.
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