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椭圆的定义

Author:guomenglin

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兩位數加法
兩組對邊相等和有直角的四邊形
錐體建築師
兩位數除以一位數（二）
【案例】2018年全国1卷理科12题

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錐台
光的反射
Measuring areas by placing different shapes
螢橋國中陳虹璇
Copy of 平行四邊形的面積教材一

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Root
Geometric Transformations
Sequences and Series
Similar Triangles
Cone

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