有人大笑时用力过猛，会使上下颌不能合拢。这是由于

题干

有人大笑时用力过猛，会使上下颌不能合拢。这是由于（　　）

A：关节软骨发生了病变

B：关节头从关节囊中滑脱出来

C：关节头从关节窝中滑脱出来

D：关节窝从关节囊中滑脱出来

上一题下一题 0.0难度选择题更新时间:2017-08-01 04:36:30

Monday	10:30—11:00 am	Visit Uncle Peter in General Hospital
Tuesday	2:00---4:00 pm	Swimming class
Wednesday	12:00—6:00 pm	Part-time job
Thursday	10:30—11:30 am	Appointment(约会) Mr.Green
Friday	11:00am	Go to the airport to meet Sam
Saturday	10:00—12:00 am	Meet John to study for test
Sunday	5:00—7:00 pm	Birthday party for Kate