《备急千金要方》记有何种脱位的复位方法（）。
A.肩关节
B.肘关节
C.膝关节
D.关节
E.下颏关节
参考答案：E
--I can' t find Mike. Could you tell me ?
--He is in the library.
A. what he is B. how he is C. where he is
脚踏车、内燃或电力单车等最大刹车距离不大于（）m。
A、5m
B、6m
C、7m
D、8m
