As she lives quite near our school , she often goes to work on an electric bike ___ in her car .

A．other than

B．rather than

C．more than

D．less than

女性，60岁，不慎滑倒致右髋疼痛，不能行走，急诊摄X线片，显示左股骨颈骨折（头下型）并明显移位，该患者原有老年性骨质疏松症。

根据该病人平素体健，无心肺功能障碍，应采取的进一步治疗措施为（）

A.服用改善微循环药物，继续观察

B.取出内固定，继续观察

C.人工股骨头置换术

D.人工全髋置换

E.粗隆下截骨