32. The following compounds function as neurotransmitters except ________.
(A) acetylcholine
(B) creatine
(C) γ-aminobutyrate
(D) 3,4-dihydroxyphenylalanine (DOPA)
(E) glutamic acid
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統計: A(0), B(16), C(0), D(0), E(2) #3205097
統計: A(0), B(16), C(0), D(0), E(2) #3205097