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Electronic computers______, the complicated mathematical operations, such as weather forecast and the control of satellites, can
Electronic computers______, the complicated mathematical operations, such as weather forecast and the control of satellites, can
admin
2014-02-20
39
问题
Electronic computers______, the complicated mathematical operations, such as weather forecast and the control of satellites, can be done quickly and accurately.
选项
A、being used
B、used
C、having been used
D、to be used
答案
C
解析
分词短语在此处作原因状语,使用了计算机才能进行又快又准确的运算,两者之间有个先后关系,所以要用完成式表示使用计算机发生在先。题句意为:“由于使用了计算机,像天气预报和卫星控制之类复杂的数学运算可以完成得又快又准确。”
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