35 神經末稍分泌 acetylcholine 結合到 postsynaptic ion channel，導致離子可進入細胞，主要 是因:
(A)protein cleavage(proteolysis)
(B)protein conformational changes
(C)protein phosphorylation
(D)protein synthesis

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統計： A(1), B(7), C(6), D(0), E(0) #865968