距离保护在运行中最主要的优点是（   ）。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69377' and id < 4491358 and id<>'4491358' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69377' and id > 4491358 and id<>'4491358' order by id asc limit 5