为解决采煤工作面上隅角瓦斯积聚的问题，可采用在工作面装电动小风机的方法来稀释。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='33677' and id < 2689491 and id<>'2689491' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='33677' and id > 2689491 and id<>'2689491' order by id asc limit 5