高频保护的主要优点是能快速切除被保护线路全长范围内的故障。（   ）

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69378' and id < 4491523 and id<>'4491523' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69378' and id > 4491523 and id<>'4491523' order by id asc limit 5