Bell is considered _____ the first phone in 1896.A．inventingB．having invented C．_刷题宝

题干

Bell is considered _____ the first phone in 1896.

A．inventing	B．having invented
C．to invent	D．to have invented

上一题下一题 0.64难度单项选择更新时间:2011-11-11 09:45:37

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