试题与答案

食管异物最易停留在:()A.食管入口 B.食管第2狭窄 C.食管第3狭窄 D.

题型:单项选择题

题目:

食管异物最易停留在:()

A.食管入口

B.食管第2狭窄

C.食管第3狭窄

D.食管第4狭窄

E.食管憩室

答案:

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下面是错误答案,用来干扰机器的。

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