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7 年级数学 NCERT 课本
7 年级数学 NCERT 课本
第 1 章 - 整数
第 2 章 - 分数和小数
第 3 章 - 数据处理
第 4 章 - 简单方程
第 5 章 - 直线和角
第 6 章 - 三角形及其性质
第 7 章 - 三角形的全等
第 8 章 - 比较量
第 9 章 - 有理数
第 10 章 - 实用几何
第 11 章 - 周长和面积
第 12 章 - 代数式
第 13 章 - 指数和幂
第 14 章 - 对称
第 15 章 - 想象立体图形

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第 12 章 - 代数式

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