8. 勃起(erection)與射精(ejaculation)，分別由自主神經系統(autonomic nervous system)中何分 支所支配?
(A)交感神經、副交感神經
(B)副交感神經、交感神經
(C)皆交感神經
(D)皆副交感神經

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統計： A(4), B(84), C(0), D(0), E(0) #865541