关于髋关节脱位的叙述不确切的是：

A．后脱位多因直接暴力引起

B．前脱位以杠杆力作用为主

C．中心脱位多由传达暴力所致

D．可压迫闭孔神经

E．强大暴力同时可出现股骨干骨折

As there was no spare bedroom, Susan had to ______ her friend for a night in the sitting-room.

A．build up

B．fix up

C．take up

D．pick up