题目内容
属于可生物降解的合成高分分子囊材的是
2021-10-14
A.聚乳酸
B.聚山梨酯
C.聚酰胺
D.羧甲基纤维素钠
E.明胶
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='25704' and id < 2160642 and id<>'2160642' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25704' and id > 2160642 and id<>'2160642' order by id asc limit 5