阿摩線上測驗
25. First-row transition metals play significant roles in biological system. Which of the following transition metal is a component of
vitamin B12?
(A) Cr
(B) Zn
(C) Fe
(D) Cu
(E) Co
答案：登入後查看
統計： A(1), B(1), C(3), D(0), E(77) #2356341
統計： A(1), B(1), C(3), D(0), E(77) #2356341
