下列各项中，属于外来原始凭证的有（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='31440' and id < 2520517 and id<>'2520517' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31440' and id > 2520517 and id<>'2520517' order by id asc limit 5