鼻内镜鼻窦手术中扩大上颌窦自然窦口时过度向前易损伤()。
A.鼻额管
B.眶纸样板
C.筛顶
D.鼻泪管
E.筛水平板
参考答案:D
—Look! That teacher is explaining something to her students again and again!
—_______teacher she is!
A.How patient
B.What patient
C.How a patient
D.What a patient
温度计:气温()
A.高兴:哀愁
B.磅秤:重量
C.天才:音乐家
D.游泳:运动