He proved himself a true gentleman and the beauty of his________was seen at its best when he

worked with others. [ ]

A . advantage  

B. appearance

C. qualification  

D. character

王女士在妇科门诊，经 * * 用喷撒法进行宫颈上药后，置于宫颈部的棉球取出的时间为（）。

A.1～2h

B.8～10h

C.12～24h

D.26～48h

E.50～72h