下列选项中，属于元认知策略的实例是（

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29179' and id < 2373967 and id<>'2373967' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29179' and id > 2373967 and id<>'2373967' order by id asc limit 5