阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空。The c

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阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空。
The computer, which was used to simplify difficult sums, began 31 a calculating machine in France in 1642. Then it developed into an analytical machine. After 32 (program) by an operator

33 used cards with holes, it could produce an answer quicker than any person. Later, Alan Turning wrote a book about how a computer could be made 34 work as a “universal machine”. From then on, the computer grew rapidly both in size and in brainpower. By the 1940s, it had grown as large as a room and this reality worried the designers. 35 , with its memory 36 (improve), the computer was ma

de smaller. First, the memory was stored in tubes, then on transistors and later on very small chips. As a result, the shape of the computer 37 (total) changed from a large machine to a PC and then a laptop. Connected by 38 network, the computer was able to share its knowledge 39 others through the World Wide Web. Since the 1970s many new applications of the computer 40 (find) in communication, finance, trade and many other areas. The computer has become a devoted friend and helper of the human race.

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