8.男性的陰莖勃起(erection of penis)主要是由下列何者刺激所導致?
(A)交感神經(sympathetic nerve)
(B)副交感神經(parasympathetic nerve)
(C)閉孔神經(obturator nerve)
(D)股神經(femoral nerve)
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統計: A(387), B(1587), C(13), D(4), E(0) #2408392
統計: A(387), B(1587), C(13), D(4), E(0) #2408392