—How did I do on ________ test?

—Well，actually you didn't do very well. I wonder if you had had ________ good review of your lessons.

A．a；a

B．the；the

C．a；the

D．the；a

患者，男性，65岁，X线片、造影显示颞下颌关节盘穿孔，骨质破坏、吸收，关节盘不可复前移位。

应首先采取的措施是（）

A．关节镜检查穿孔部位

B．手术修复穿孔

C．观察不处理

D．保守治疗

E．调治疗