问题
单项选择题
合成ABS塑料的材料不包括以下哪一项？（）
A.聚丙烯
B.丁二烯
C.苯乙烯
D.丙烯腈
答案
参考答案：A
搜题请搜索小程序“爱下问搜题”
合成ABS塑料的材料不包括以下哪一项？（）
A.聚丙烯
B.丁二烯
C.苯乙烯
D.丙烯腈
参考答案：A
| 单句改错。 | |
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