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单选题
Ten years ago, smaller companies did not use large computers because _____.
A
these companies had not enough money to buy such expensive computers
B
these computers could not do the work that small computers can do today
C
these computers did not come onto the market
D
these companies did not need to use this new technology
参考答案
参考解析
解析：
根据第一段第二句“Before that time, large computers were only fixed by large, rich companies that could afford the investment.”可知，小公司不用大型电脑是因为其费用太高。
根据第一段第二句“Before that time, large computers were only fixed by large, rich companies that could afford the investment.”可知，小公司不用大型电脑是因为其费用太高。
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