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橢圓幾何性質,光學性質,生活應用
Author:
陳家豪
GeoGebra
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中华人民共和国国旗
第八周作业
盈利與虧蝕
百分數及其應用
异形操场
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平移旋轉
正方形和長方形有甚麼特性?
椭圆的定义
test
翰林數學_2下_CH3-1_多邊形的外角和
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Distributions
Right Triangles
Solids or 3D Shapes
Similar Triangles
Prism