可以在只经断路器断开电源的设备上工作。（  ）

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69486' and id < 4500781 and id<>'4500781' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69486' and id > 4500781 and id<>'4500781' order by id asc limit 5