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