Charles Babbage is generally considered to the first computer. A．to invent B．inv
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Charles Babbage is generally considered to_______ the first computer.
| A．to invent | B．inventing | C．to have invented | D．having invented |
试题答案
【答案】
C
【解析】考察不定式用法。Consider sb to do/be…认为某人…；发明了第一台电脑是一个已经完成的事情，所以使用完成式to have done.