Try not to be absent from class again for the rest of the term. You _____ too many classes. You _____ two classes just last week.

A．have missed; missed

B．missed; missed

C．had missed; have missed

D．will miss; have missed

关节结构紊乱病类描述错误的是（）。

A.主要包括各种关节盘移位、关节盘各附着松弛或撕脱、关节囊扩张等

B.有的可以治愈

C.X线检查一般均有骨质改变但无关节间隙异常

D.常伴有关节半脱位

E.在开口运动中有各种不同时期的弹响和破碎音