题目内容
I don’t know who invented ________ telephone. It’s really ________ most useful invention.
A. the; a B. /; a C. a; the D. /; the
【答案】
A
【解析】略
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题目内容
I don’t know who invented ________ telephone. It’s really ________ most useful invention.
A. the; a B. /; a C. a; the D. /; the
A
【解析】略