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食管的第二个狭窄(  )

单选题
2022-04-02 13:28
A、<span style="font-size:16px;font-family:宋体;color:#333333">距中切牙约20厘米</span>
B、<span style="font-size:16px;font-family:宋体;color:#333333">距中切牙30厘米</span>
C、<span style="font-size:16px;font-family:宋体;color:#333333">约平第4、5胸椎体之间的平面</span>
D、<span style="font-size:16px;font-family:宋体;color:#333333">平对环状软骨弓</span> 体之间的平面
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正确答案
C

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