— What are you going to do this afternoon?

— I'll probably go for a walk later on________it stays fine. [ ]

A. as far as  

B. so long as

C. even if  

D. as though

既降肺气又降胃气的药物是（）

A.半夏

B.旋覆花

C.白前

D.前胡

E.桑白皮