编制工作分解结构，必须遵守下列哪项规则？（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='27198' and id < 2255317 and id<>'2255317' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='27198' and id > 2255317 and id<>'2255317' order by id asc limit 5