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问题 单项选择题 B型题

传染病病房，物体表面卫生学标（）

A.≤5cfu／cm2

B.≤10cfu／cm2

C.≤200cfu／cm2

D.≤500cfu／cm2

E.≤15cfu／cm2

答案

参考答案：E

单项选择题

______in the past, at the moment it is a favorite choice for wedding gown.

A. Unpopular has as white been

B. White has been as unpopular
C. Unpopular has been as white

D. Unpopular as white has been
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选择题

Some people choose jobs for other reasons____money these days.   [ ]

A. for      

B. except    

C. besides    

D. with
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