影响固体药物氧化的因素有()
A.温度
B.离子强度
C.溶剂
D.光线
E.PH值
参考答案:A, D
A young man _______ glasses came _______ the office. He had an old bag _______ his arm. [ ]
A. without; in; in
B. with; into; under
C. in; out of; under
D. with; in; on
外运供销的鱼类及水产品应符合该产品_________的标准。