67第一型的Hyperphenylalaninemia是由於缺乏下列何種酵素所引起的？
(A)Phenylalaninehydroxylase
(B)Phenylalaninereductase
(C)Dihydropteridinehydroxylase
(D)Dihydropteridinereductase

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統計： A(9), B(3), C(1), D(0), E(0) #2986792