距离保护采用三段式，分为相间距离保护和（   ）。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69011' and id < 4466656 and id<>'4466656' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69011' and id > 4466656 and id<>'4466656' order by id asc limit 5