You can buy(买)________things in the supermarket.        [ ]

A. a lot            

B. much          

C. a lots of        

D. a lot of

头痛因于肝的病机是（）

A.肝失疏泄

B.气郁化火

C.上扰清窍

D.肝肾阴虚

E.肝阳偏亢