片剂中久贮其含量有所下降的成分是
A.生物碱
B.苷类
C.挥发油
D.糖类
E.氨基酸及蛋白质
参考答案:C
解析:因为片剂中含有挥发油时,挥发油会挥发,而使片剂久贮其含量有所下降。
— Do you think it's a good idea to make friends with your students?
— ____ , I do. I think it's a great idea. [ ]
A. Really
B. Obviously
C. Actually
D. Generally
热脱扣器的整定电流应()所控制负载的额定电流。
A、不小于
B、等于
C、小于
D、大于