问题描述: 铁矿石中含有含量的测定,五次测量结果分别是39.10%,39.12%,39.19%,39.17%,39. 1个回答 分类:综合 2014-09-17 问题解答: 我来补答 你想说明什么问题?化验准确还是问铁的品味? 展开全文阅读