單項(xiàng)選擇題

針刺鎮(zhèn)痛信號以興奮()傳導(dǎo)為主。①.Ⅱ類神經(jīng)纖維②.Ⅰ類神經(jīng)纖維③.Ⅲ類神經(jīng)纖維④.Ⅳ類神經(jīng)纖維

A.①+②+③
B.①+③
C.②+④
D.④
E.①+②+③+④

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