以下哪种物质不会灼伤皮肤？（ ）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30400' and id < 2457459 and id<>'2457459' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30400' and id > 2457459 and id<>'2457459' order by id asc limit 5