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圆锥曲线的第二定义
Author:
梁航宇
GeoGebra
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異分母分數減法
畫出對稱圖形
四邉形 (四年級) 教師版
兩組對邊相等的四邊形
柱體建築師
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Lab 3 Task 8: Regular Pentagon Construction
三角型
Homework2
congruent triangle_provided by Mr Yeung Kar Chun
极坐标系
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Median Value
Triangles
Statistical Characteristics
Trigonometric Functions
General Quadrilateral