根据企业价值链的分析，下列哪项活动不是企业的基本价值活动

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29328' and id < 2387527 and id<>'2387527' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29328' and id > 2387527 and id<>'2387527' order by id asc limit 5