观察学习是指（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='32267' and id < 2568726 and id<>'2568726' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32267' and id > 2568726 and id<>'2568726' order by id asc limit 5