在提取中药化学成分时，对药材穿透力最弱的溶剂是

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='30363' and id < 2454147 and id<>'2454147' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30363' and id > 2454147 and id<>'2454147' order by id asc limit 5