秘书部门分级管理所形成的结构模式是（　）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='32304' and id < 2569889 and id<>'2569889' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32304' and id > 2569889 and id<>'2569889' order by id asc limit 5