, and you will realize your dream of being successful.

A．Making great efforts

B．To make your efforts

C．A bit more effort

D．If you double your efforts

关于腰椎滑脱的诊断，拍摄X线片常用的角度是（）

A.正位片

B.侧位片

C.斜位片

D.过伸过屈侧位片

E.过伸过屈正位片