— Lucy looks blue today.

— Yes, but I don't know what it is________makes her  so upset. [ ]

A. as  

B. what

C. that  

D. which

脾虚带下的病机是（）

A.脾虚失运，痰浊内生

B.脾胃虚弱，胃失和降

C.脾虚湿盛，流注下焦

D.脾失健运，水湿泛滥

E.脾虚下陷，统摄无权