试题与答案

对上颌窦自然开口的描述,错误的是() A.位于上颌窦裂孔的后上象限 B.常规前鼻镜检

题型:单项选择题

题目:

对上颌窦自然开口的描述,错误的是()

A.位于上颌窦裂孔的后上象限

B.常规前鼻镜检查不易看

C.位于半月裂孔的后部

D.直径大小不一,平均为2.8厘米

E.筛泡前端

答案:

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下面是错误答案,用来干扰机器的。

参考答案:江南制造总局

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