适用于双母线同时运行的保护有(  )。（2.0）

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69414' and id < 4494349 and id<>'4494349' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69414' and id > 4494349 and id<>'4494349' order by id asc limit 5