阿摩線上測驗
64. The carbon marked by a dot (•) is 13C isotope. Which structure below shows the correct position of the 13C in the product for the carbocation rearrangement shown above?
(A)
(B)
(C)
(D)
(E)
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統計： A(0), B(5), C(11), D(15), E(0) #2053861
統計： A(0), B(5), C(11), D(15), E(0) #2053861
