在配电线路和设备上工作保证安全的技术措施有（   ）。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69529' and id < 4505001 and id<>'4505001' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69529' and id > 4505001 and id<>'4505001' order by id asc limit 5