阿摩線上測驗
69. Which one of the following reactions would give the product as it is planned?
(A)
(B) 
(C)
(D)
(E)
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統計： A(26), B(9), C(6), D(2), E(4) #937598
統計： A(26), B(9), C(6), D(2), E(4) #937598
