以下药物中，治疗慢性阻塞性肺病最主要的药物是

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='30373' and id < 2455250 and id<>'2455250' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30373' and id > 2455250 and id<>'2455250' order by id asc limit 5