Charles Babbage is generally considered______-the first computer.A.to inventB.inventingC.to have inv

题目简介

Charles Babbage is generally considered______-the first computer.A.to inventB.inventingC.to have inv

题目详情

Charles Babbage is generally considered______-the first computer.
A.to inventB.inventingC.to have inventedD.having invented
题型:单选题难度:偏易来源:不详

答案

C
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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