如果要求任一组母线故障都不会影响各回路供电，则应采用（  ）接线。 

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69483' and id < 4500445 and id<>'4500445' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69483' and id > 4500445 and id<>'4500445' order by id asc limit 5