题目内容
人工合成的可生物降解的微囊材料是
2021-10-22
A.聚乳酸
B.硅橡胶
C.卡波姆
D.明胶-阿拉伯胶
E.醋酸纤维素
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='26249' and id < 2197214 and id<>'2197214' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='26249' and id > 2197214 and id<>'2197214' order by id asc limit 5