She's looking at me _______ she ________ me, but I've never seen her before in my life.  [ ]

A. as if, knows

B. as if, knew

C. as though, knows

D. even if, knew

在我国，有许多城市是综合交通运输枢纽。下列城市哪个是铁路—水运枢纽呢？[ ]

A．乌鲁木齐　　

B．武汉　　

C．济南　　

D．北京