74.下列何者是細胞內甲基(methyl group)的提供者?
(A)homocysteine
(B)S-adenosyl-homocysteine
(C)S-adenosyl-methionine
(D)methionine
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統計: A(91), B(214), C(1285), D(556), E(0) #2181048
統計: A(91), B(214), C(1285), D(556), E(0) #2181048