问题
选择题
Charles Babbage is generally considered _____ the first computer.[ ]
A. to invent
B. inventing
C. to have invented
D. having invented
答案
答案：C
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Charles Babbage is generally considered _____ the first computer.[ ]
A. to invent
B. inventing
C. to have invented
D. having invented
答案：C
