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问题 选择题

She        all her business affairs before going on  holiday.  [ ]

A. organized    

B. arranged  

C. planned      

D. prepared

答案

答案：B

选择题

----------Do you know if Mr. Wu ______ to our school tomorrow?

----------I’ve no idea. If he ______, everyone ______ very happy.

A．will come; comes; will be

B．will come; will come; is

C．comes; will come; will be

D．comes; comes; will be
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单项选择题 A1型题

假设检验的第二类错误是指（）

A.拒绝了实际上成立的H0

B.不拒绝实际上成立的H0

C.拒绝了实际上不成立的H0

D.接受实际上错误的H0

E.拒绝H0时所犯的错误
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