题目内容
关于外耳道的说法,恰当的是()
2021-11-29
A.皮肤与骨疏松结合
B.外1/3为软骨部,内2/3为骨部
C.外1/3为骨部,内2/3为软骨部
D.外2/3为软骨部,内1/3为骨部
E.外2/3为骨部,内1/3为软骨部
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