要求每位下属应该有一个并且仅有一个上级的组织设计原则是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29328' and id < 2387615 and id<>'2387615' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29328' and id > 2387615 and id<>'2387615' order by id asc limit 5