問題詳情

21. Which of the following pairs of structures are not resonance forms of the same compounds?
(A) 

 
(B)

 
(C)

 
(D) 

 
(E) 

參考答案

答案：D
難度：非常簡單0.941176
統計：A(0),B(0),C(0),D(16),E(1)