不能用排水法收集的气体是

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='21231' and id < 1845576 and id<>'1845576' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='21231' and id > 1845576 and id<>'1845576' order by id asc limit 5