沟通的最高层次是（　）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='32251' and id < 2568233 and id<>'2568233' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32251' and id > 2568233 and id<>'2568233' order by id asc limit 5