酒精灯不再使用时，应立刻用嘴吹气灭火。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30402' and id < 2457821 and id<>'2457821' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30402' and id > 2457821 and id<>'2457821' order by id asc limit 5