下列有关经济定理与效应的说法，错误的是：

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30995' and id < 2493477 and id<>'2493477' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30995' and id > 2493477 and id<>'2493477' order by id asc limit 5