I met several people there, two of _____were foreigners. 

A．whom　

B．them　

C．who　

D．which

股骨颈骨折
髋关节后脱位

A.易发生肱动脉损伤

B.易发生腘动脉损伤

C.易发生缺血性骨坏死

D.易发生桡神经损伤

E.易发生坐骨神经损伤