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  3. （中国矿业大学2006年试题） Generally, a computer is any device that can perform numerical calculations. Currently,【1】, the term usually

（中国矿业大学2006年试题） Generally, a computer is any device that can perform numerical calculations. Currently,【1】, the term usually

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问题 （中国矿业大学2006年试题）
    Generally, a computer is any device that can perform numerical calculations. Currently,【1】, the term usually refers【2】an electronic device that can【3】a series of tasks according to a set of instructions.
    In 1953 there were only about 100 computers【4】use in the world. Today hundreds of millions of computers are【5】in homes, schools, businesses, government offices, and universities for almost every conceivable【6】.
    Modern desktop【7】computers, or PCs, are many times more powerful than the huge, million dollar【8】of computers of the 1960s and 1970s. Most PCs can perform from 400 million to several billion operations per second. These computers are used not【9】for household management and personal entertainment, but also for most or the automated【10】required by small business. The fastest desktop computers are called workstations, and they are generally used for scientific, engineering, or advanced business application.
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答案however
解析 此处表示转折，因此用however表示“不过；然而”。
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