化工生产须遵守安全生产禁令，进入容器和设备检修时，必须要（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='24820' and id < 2121799 and id<>'2121799' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='24820' and id > 2121799 and id<>'2121799' order by id asc limit 5