由于一个刺激的排除而加强了某一个操作行为发生的概率，这是指

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30326' and id < 2451928 and id<>'2451928' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30326' and id > 2451928 and id<>'2451928' order by id asc limit 5