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2018年中考化学真题分类汇编1物质的构成和变化考点2元素与元素周期表的简单应用1元素1元素的含量（无答案）.doc

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1考点 2 元素与元素周期表的简单应用（18 昆明）3由地壳中含量最多的元素组成的单质是（ ）AFe BSi CO 2 DAl（18 桂林）9. 地壳中含量最多的元素是（ ）A.氧 B.硅 C.钙 D.铁（18 岳阳）2地壳中含量最多的元素是（ ）ASi BAl CO DFe（18 南京）1在人体所含的元素中，质量分数最高的是A氢 B氧 C钙 D铁（18 天津）3人体内含量最高的金属元素是（ ）A铁 B锌 C钾 D钙

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