眼球异物定位检查的主要目的是()
A.确定有无异物
B.确定异物大小
C.确定异物位置
D.确定异物性质
E.确定手术方案
参考答案:C
The teacher noticed him basketball on the playground just now. [ ]
A. played
B. to play
C. play
D. was playing
鼓膜内陷特征的是()
A.光锥缩短,变形
B.锤骨柄向后上移位
C.锤骨短突明显外突
D.前后皱襞夹角变大
E.光锥消失