若在格栅式的平台上工作，应采取有效隔离措施，如铺设木板等(   )。

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69530' and id < 4505116 and id<>'4505116' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69530' and id > 4505116 and id<>'4505116' order by id asc limit 5