9. 下列何者為加成聚合物?
I. polypropylene II. Teflon III. Nylon
(A) only I
(B) only II
(C) only III
(D) both I and II
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統計: A(27), B(6), C(20), D(396), E(0) #2905423
統計: A(27), B(6), C(20), D(396), E(0) #2905423