加涅在《学习的条件》中提出学习结果分类和学习层次分类。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30601' and id < 2469207 and id<>'2469207' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30601' and id > 2469207 and id<>'2469207' order by id asc limit 5