阿摩線上測驗
3. What is the major product in the following reaction sequence?
(A)
(B)
(C)
(D)
(E)
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統計： A(2), B(26), C(10), D(0), E(2) #937812
統計： A(2), B(26), C(10), D(0), E(2) #937812
