12 活化副交感神經(parasympathetic nervous system),將會降低心跳速率,此作用主要媒介的受體為:
(A) adrenergic α1 receptor
(B) adrenergic β1 receptor
(C) nicotinic acetylcholine receptor
(D) muscarinic acetylcholine receptor
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統計: A(145), B(504), C(162), D(376), E(0) #3285501
統計: A(145), B(504), C(162), D(376), E(0) #3285501