解决问题的思维活动要经历四个阶段，下列哪一项是其关键阶段 （ ）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='26046' and id < 2188057 and id<>'2188057' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='26046' and id > 2188057 and id<>'2188057' order by id asc limit 5