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
参考答案:E
______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 unpopularC. Unpopular has been as white D. Unpopular as white has been
Some people choose jobs for other reasons____money these days. [ ]
A. for
B. except
C. besides
D. with