吃饭时大说大笑易呛着的原因与下列哪个结构来不及盖住喉口有关 A

吃饭时大说大笑易呛着的原因与下列哪个结构来不及盖住喉口有关

A.会厌软骨    B.环状软骨    C.甲状软骨    D.气管软骨

答案

A

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