问题描述:
Charles Babbage is generally considered __ the first computer.
A.to invent B.inventing C.to have invented D.having invented
请高手给个确切的答案,再讲下其中的语法知识,
A.to invent B.inventing C.to have invented D.having invented
请高手给个确切的答案,再讲下其中的语法知识,
问题解答:
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