题目内容
.Charles Babbage is generally considered ______ is the first computer.
| A.to invent | B.inventing | C.to have invented | D.having invented |
C
解析
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题目内容
.Charles Babbage is generally considered ______ is the first computer.
| A.to invent | B.inventing | C.to have invented | D.having invented |
C
解析