Without facts , a person can’t form a correct opinion , for he needs to have actual knowledge          his thinking .

A．which to be based on

B．on which to base

C．which to be based

D．which to base

黄龙汤的组成药物除大黄、芒硝、枳实、厚朴外，其余的是（）。

A.人参、当归、甘草

B.当归、芍药、甘草

C.人参、当归、牛膝

D.生地黄、人参、当归

E.麦冬、人参、当归