电力系统中若采用角形接线，一般不超过六角。（  ）

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69483' and id < 4500515 and id<>'4500515' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69483' and id > 4500515 and id<>'4500515' order by id asc limit 5