問題詳情

6. What kind of polymer is produced in the following reaction?

 
(A) a polycarbonate
(B) poly(acrylonitrile)
(C) a polyester
(D) polyurethane
(E) a synthetic rubber

參考答案

答案：D
難度：適中0.666667
統計：A(0),B(1),C(1),D(4),E(0)