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问题 选择题

Mr Li is one of the businessmen who _____ very rich.     [ ]

A. is    

B. are    

C. was    

D. were

答案

答案：B

选择题

It ______ long befor the Chinese Space Center ______ Shenzhou VII Spacecraft,becoming the third country to send an astronaut to "walk" in space after the United States and the former Soviet Union (now Russia).

A．will not be,launches

B．was not,launched

C．will be,launches

D．was not,had launched
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单项选择题 共用题干题

患者女性，30岁。已婚，人工流产术后2年未孕。

下一步首选的检查项目是（）。

A.输卵管通畅试验

B.诊断性刮宫

C.B超

D.BBT

E.宫颈涂片
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