认识对实践的反作用具体体现在（）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='28721' and id < 2342788 and id<>'2342788' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='28721' and id > 2342788 and id<>'2342788' order by id asc limit 5