注射用抗生素粉末分装室洁净度要求为
A．大于100000级B．100000级C．10000级D．100级E．B、C均可
参考答案：D
Measures have been taken________ crime in the city. [ ]
A. reducing
B. reduced
C. to reduce
D. of reducing
光波长转换器（OUT）的作用是实现符合G957的光接口与符合（）的光接口之间的转换。
A.G703
B.G692
C.G.652
D.G.655
