与药物吸收有关的生理因素是( )
A.胃肠道的pH值
B.药物的pKa
C.食物中的脂肪量
D.药物的分配系数
E.药物在胃肠道的代谢
参考答案:A,C,E
_____ of the apple ____ bad and he has to throw it away.
A.two third; went
B.an half; went
C.two thirds; go
D.two thirds; goes
如图所示电路的戴维南等效模型为()。
A.
B.
C.
D.