影响产值成本率的直接因素是（  ）。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='5107' and id < 376295 and id<>'376295' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='5107' and id > 376295 and id<>'376295' order by id asc limit 5