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  3. The home computer industry has been growing rapidly in the United States in the last ten years. Computers used to be large, expe

The home computer industry has been growing rapidly in the United States in the last ten years. Computers used to be large, expe

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问题     The home computer industry has been growing rapidly in the United States in the last ten years. Computers used to be large, expensive machines that were very difficult to use. But scientists and technicians have been making them smaller and cheaper while at the same time they have been made easier to use. As a result, their popularity has been increasing as more people have been buying computers for their homes and businesses. Computers have been designed to store information and compute complex problems. Some have voices that speak with the operators. Stores use computers to keep records of their inventories and to send bills to their customers. Offices use computers to type letters, record business and com- municate with other offices. People have been using computers in their homes to keep track of expenses and turn appliances on and off.
    One important new use of computers is for entertainment. Many new games have been designed to be played on the computers. People of all ages have been playing these games. They have been going to Arcades where the computer games can be played for a small cost. People also have been buying home computers to play computer games at home. They have become very popular indeed.
What’s the main idea of this passage?
选项 A、The development of electronic computer.
B、How to operate a computer?
C、What’s the use of computers?
D、What do the scientists and technicians do about computers?
答案A
解析 本题属主旨题。文章第一段主要介绍：电脑越来越普及和电脑的一些优点。第二段主要介绍：电脑的一个新用途，即电脑游戏。
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