問題詳情
10.天然橡膠主要是由何種單體結合而成的聚合物？
(A)乙烯
(B)氯乙烯
(C)氯丁二烯
(D)異戊二烯。
(A)乙烯
(B)氯乙烯
(C)氯丁二烯
(D)異戊二烯。
參考答案
答案：D
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)
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