相较于操作技能，心智技能在结构上具有（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='23639' and id < 2056506 and id<>'2056506' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='23639' and id > 2056506 and id<>'2056506' order by id asc limit 5