下列各项中目前没有发现具有致癌性的污染物是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30444' and id < 2459755 and id<>'2459755' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30444' and id > 2459755 and id<>'2459755' order by id asc limit 5