单选As we can expect ,sales of home computers have ___ in recent years

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• 单选As we can expect ,sales of home computers have ___ in recent yearsAs we can expect ,sales of home computers have ___ in recent yearsA.taken out B.gone outC.taken offD.gone off为什么?
• We live in the “computer age(时代) ”.We live in the “computer age(时代) ”.People like scientists,teachers,writers(作家) and even students use computers to do 1 _work .But more than 30 years ago,__2__ couldn’t do much.They were very big and expensive.Very_3___people were interested in them and knew how to use them .Today computers are smaller and 4 .__5_ they can do a lot of work,many people like to use them,Some people even have them at home.Computers becom
• 单选As we can expect ,sales of home computers have ___ in recent years
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