智能变电站，防误闭锁分为三个层次具体包括（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29466' and id < 2399096 and id<>'2399096' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29466' and id > 2399096 and id<>'2399096' order by id asc limit 5