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Thecountryhasalreadysentupthreeunmannedspacecraft,themo...

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问题详情:

Thecountryhasalreadysentupthreeunmannedspacecraft,themo...

The country has already sent up three unmanned spacecraft, the most recent _______at the end of last March.

A.has been launched     B.having been launched    C.being launched   D.to be launched

【回答】

B

知识点:主谓一致

题型:选择题

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