(2019 -北京）药店出售的某复合维生素成分表中标识:“每片含铁60 mg”，其 中“铁”指的是：

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29348' and id < 2389659 and id<>'2389659' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29348' and id > 2389659 and id<>'2389659' order by id asc limit 5