30. How many absorptions will the following compound have in its carbon NMR spectrum? (A) 3 (B) 4 (C

問題詳情

30. How many absorptions will the following compound have in its carbon NMR spectrum?

(A) 3
(B) 4
(C) 5
(D) 6
(E) 7

參考答案

上一篇 : 31. 關於方程式88 ( x - 2 ) 2= 95 的兩根，下列判斷何者正確？(A) 一根小於1，另一根大於3(B) 一根小於- 2，另一根大於2(C) 兩根都小於0(D) 兩根都大於2
下一篇 : 10. 如圖(三),在梯形ABCD中, , LA=90°, =5, =13。若作的中垂線恰可通過B點,則 =?(A)8(B)9(C)12(D)18