Charles Babbage is generally considered-the first computer.A. to inventB. inventingC. to h

发布时间:2020-08-17 14:08:14

Charles Babbage is generally considered    -the first puter.
A. to invent
B. inventing
C. to have invented
D. having invented

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A. to invent
B. inventing
(答案→)C. to have invented
D. having invented
解析:非谓动词表示的动作如果发生在句子谓语动词表示的动作之前,非谓语动词就要用完成体。
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