发文机关与收文机关之间的公文往来关系被称为（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='32022' and id < 2556840 and id<>'2556840' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32022' and id > 2556840 and id<>'2556840' order by id asc limit 5