据文献考证，“公文”一词，最早出现在（　）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='32203' and id < 2566422 and id<>'2566422' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32203' and id > 2566422 and id<>'2566422' order by id asc limit 5