给药的剂量取决于
A．药效学
B．药动学
C．二者均有
D．二者皆无
参考答案：C
----- How did you do in the test ?
----- Not so well. I ______ much better but I misread the directions for Part D.
A. could have done B. could do C. must have done D. should do
五味子的原植物属于
A．百合科B．玄参科C．芸香科D．蔷薇科E．木兰科
