---There is something wrong with my laptop. How can I repair it?

--- Well, that’s easy.  Look at the        ?

A．explanations

B．expressions

C．instructions

D．introductions

独活寄生汤组成中含有的药物是（）

A.熟地、芍药

B.细辛、防风

C.白术、茯苓

D.秦艽、桂枝

E.川芎、苍术