皮皮学，免费搜题
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【单选题】
胸神经前支()
A.
12对胸神经前支各位于相应的肋间隙中
B.
肌支支配胸肌和腹肌
C.
只分布于胸、腹壁的皮肤
D.
胸6神经分布于肋弓平面的腹壁皮肤
E.
第12对胸神经又称肋下神经
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