— It is said that in the future human beings will have to live in the sky or under the water.  

— ______!You don't really believe that, do you?     [ ]

A. It depends    

B. Go ahead        

C. Oh, come on    

D. That's great

方剂中不可缺少的药物是（）

A.臣药

B.佐助药

C.君药

D.使药

E.反佐药