----- Hi, Mark. How was the musical evening?

----- Excellent! Ales and Andy performed _________ and they won the firs prize.

A．skillfully

B．commonly

C．willingly

D．nervously

艾滋病患者肺部机会性感染最常见的病原体是（）

A.白色念珠菌

B.结核杆菌

C.疱疹病毒

D.巨细胞病毒

E.肺孢子虫