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(25), B(6), C(19), D(362), E(0) #2905423
統計: A(25), B(6), C(19), D(362), E(0) #2905423