为了便于实现多级中断嵌套，使用（）来保护断电和现场最有效。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30130' and id < 2438255 and id<>'2438255' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30130' and id > 2438255 and id<>'2438255' order by id asc limit 5