吸入粉雾剂中的药物微粒，大多数应小于

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='30294' and id < 2449548 and id<>'2449548' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30294' and id > 2449548 and id<>'2449548' order by id asc limit 5