問題詳情

90. What monomer(s) is/are needed to synthesize the polymer shown below?


 I. HOCH2CH2OH II. HOOCCH2CH2COOH III. HOCH2CH2COOH IV. HOCH=CHOH V. HOOCCH=CHCOOH
(A) II
(B) III
(C) I and II
(D) IV and V
(E) II and III

參考答案

答案：C

統計：A:0,B:0,C:1,D:0,E:0

難度：計算中