题目内容
下列哪些是焊接场地环境可能产生的有害问题?( )
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SQL Error: select id,body,options from ***_enewstiku where sourceid='30404' and id < 2457974 and id<>'2457974' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30404' and id > 2457974 and id<>'2457974' order by id asc limit 5