問題詳情

54. The structures below are:

 
(A)not isomers.
(B) conformational isomers.
(C)cis-trans isomers.
(D)structural isomers.
(E) both B and D

參考答案

答案：D
難度：困難0.333333
統計：A(1),B(0),C(1),D(1),E(0)