泡沫塑料的原材料为()。A.聚苯乙烯 B.环氧树脂 C.邻苯二甲酸 D.醋酸乙烯 发布时间:2017-10-18 02:33 │ 来源:www.tikuol.com 题型:单项选择题 问题: 泡沫塑料的原材料为()。A.聚苯乙烯B.环氧树脂C.邻苯二甲酸D.醋酸乙烯
题型:单项选择题 — Do you suppose Mr. Smith is a good teacher? — _____. She is devoted to her students. [ ]A. That's all rightB. Of course C. I suppose so D. I'm not sure 查看答案