My mother asked me to repeat ______ telephone number ______ second time so that she could write it down.

A．the; a

B．an; the

C．an; a

D．the; the

骨与关节X线摄片检查常规要求（）

A.一般摄取正、侧位片

B.两侧对称的骨与关节，改变轻微，难以确诊时，应拍摄对侧相应部位对照

C.应包括周围软组织和邻近的关节

D.脊椎、手足等部位应加摄斜位片

E.髌骨、跟骨可取切线位摄片