I never doubt ______.

A．whether Tom has told me the truth or not

B．that whether has Tom told me the truth

C．that Tom has told me the truth

D．if Tom has told me the truth

毒物动力学中主要参数是（）。

A.生物半减期

B.血浓度－时间曲线下面积

C.表观分布容积

D.以上都是

E.以上都不是