配有重合闸后加速的线路，遇到永久性故障时(    )。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69480' and id < 4501513 and id<>'4501513' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69480' and id > 4501513 and id<>'4501513' order by id asc limit 5