________the help of the teacher, the student who wasn't good at math________the difficult

problem quickly. [ ]

A. Under; worked out  

B. With; worked on

C. Under solved  

D. With; solved

女，37岁，反复发作血尿3年余，本次发作7次，尿色淡红。无尿频尿急，有轻度尿痛，滞涩感，腰膝酸软，五心烦热，舌淡红，脉细数。

治疗选用方剂是（）.

A.归脾汤

B.知柏地黄汤

C.小蓟饮子

D.无比山药丸

E.补中益气汤