Most polymers are flammable in their pure form, except().


Most polymers are flammable in their pure form, except().

A.Poly(vinyl chloride)

B.Polystyrene

C.Polytetrafluoroethylene

D.Polyimide

正确答案:Poly(vinyl chloride);Polytetrafluoroethylene;Polyimide


Tag:材料导论 时间:2021-12-31 13:06:05