严禁在带压力的容器或管道上施焊，焊接带电的设备必须先切断电源。 （ ）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='24819' and id < 2121771 and id<>'2121771' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='24819' and id > 2121771 and id<>'2121771' order by id asc limit 5