按照我国GMP中洁净度标准的规定:100000级洁净度的洁净室微生物最大准许数,浮游菌/立方米多少个
A.5B.100C.500D.1000E.0
参考答案:C
诉讼手段,是我们维护合法权益常用的有效手段。
判断:____________________________________________________
改正:____________________________________________________
There have been no occasions ____ he has come late for school.
A.which
B.what
C.when
D.that