使用电钻或手持电动工具时应注意哪些安全问题？（ ）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30397' and id < 2457190 and id<>'2457190' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30397' and id > 2457190 and id<>'2457190' order by id asc limit 5