题目内容
合成的髙分子材料是
2021-12-16
A.明胶、虫胶、阿拉伯胶
B.聚乙烯醇、阿拉伯胶
C.羧甲基纤维素、阿拉伯胶
D.聚乙烯醇、羟丙甲纤维素、乙烯-醋酸 乙酯
E.淀粉、聚乙烯醇、琼脂
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='29785' and id < 2418497 and id<>'2418497' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29785' and id > 2418497 and id<>'2418497' order by id asc limit 5