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地壳中含有大量的化学元素，化学元素形成了矿物，矿物组成了岩石，在地壳中已经发现的90多种化学元素中，含量居前两位的元素是（　　）。

单选题
2022-02-24 14:56
A、氧、硅
B、硅、铝
C、铝、钠
D、铁、镁
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正确答案
A
试题解析

A项，地壳中含有大量的化学元素，按含量大小，位居前八位的元素分别是：氧、硅、铝、铁、钙、钠、钾、镁。
标签： 地方公务员 新疆 江苏 广西 江西 海南 湖北 河北 国家公务员 行政能力测验 云南 内蒙古 上海
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