19. About transaldolase and transketolase
(A) Both transfer one-carbon unit,
(B) Both transfer two-carbon unit,
(C) Both transfer three-carbon unit,
(D) Transaldolase transfer two-carbon, transketolase transfer three-carbon,
(E) transaldolase transfer three-carbon, transketolase transfer two-carbon.

1. 題目解析本題考察的是轉醛酶（tr...