艾利斯征阳性不可能出现在：（）.

A.股骨颈骨折

B.股骨粗隆间骨折

C.髋关节后脱位

D.髂骨骨折

E.股骨颈短缩

At assembly, our monitor made a speech, swearing to try our best to study well______   us students. [       ]

A. in memory of

B. on behalf of  

C. in honor of

D. in favor of