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閱讀下面的短文，從A、B、C、D四個選項(xiàng)中選出一個能填入短文相應(yīng)空白處的最佳答案。

　　We live in“computer age(時(shí)代)”．People like using computers to do 　　1　　 work．But more than 20 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　　 ．Since they are useful, many people like to use them, even at home．

　　Computers 　　5　　 very important because they can work 　　6　　 than men and make fewer mistakes．Computers can 　　7　　 people do a lot of work．Writers can use computers to write．Teachers can use computers to help teaching and students use them to study．Computers can also remember what you put 　　8　　 them．Computers are very 　　9　　．They are our good friends．Do you want to 　　10　　 a computer．

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