43. 下列何種代謝產物在酪胺酸代謝障礙(tyrosinemia)時，在尿液中之含量可能會上升?
(A)dihydroxyphenylalanine
(B)phenylpyruvate
(C)phenylalanine
(D)tryptophan

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統計： A(0), B(1), C(0), D(0), E(0) #4030191