题目内容
适用于弱酸、稀酸、碱类和普通溶剂过滤的是
2021-10-14
A.醋酸纤维素膜
B.硝酸纤维素膜
C.聚酰胺膜
D.聚四氟乙烯膜
E.聚偏氟乙烯膜
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='25703' and id < 2160563 and id<>'2160563' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25703' and id > 2160563 and id<>'2160563' order by id asc limit 5