下列有关平车的使用注意事项，正确的有（）。

A.头部置于平车的小轮端

B.推车时小轮在前，车速适宜

C.注意观察患者病情变化

D.护士站于患者头侧

E.上下坡时，应使患者头部在高处一端

—How far apart do they live?

—________I know, they live in the same neighbourhood.[ ]

A. As long as    

B. As far as

C. As well as  

D. As often as