[本科]线路纵联差动保护也可以做相邻线路的后备保护。（  ）

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69487' and id < 4500971 and id<>'4500971' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69487' and id > 4500971 and id<>'4500971' order by id asc limit 5