—Zhang Guorong, a HK pop singer, jumped from the top of a building and killed himself.        

—What a pity! That’s because he had______ living in the world.      [ ]

A. been fed up with  

B. been pleased with  

C. nothing to do with

D. been used to

治疗糖尿病并发雀盲应首选（）

A.普济消毒饮

B.一贯煎

C.五味消毒饮

D.明目地黄汤

E.六味地黄汤