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GeoGebra
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兩位數除以一位數（二）
球體建築師
畫出對稱圖形
GeoGebra笔记功能体验课件
【案例】圆柱体内放置一个大球六个小球
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商高定理之正三角形1
橢圓軌跡
Trigonometric Relations(180,360)
翰林數學_2下_CH4-3_梯形中線性質
一个桶八个球
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Angles
Calculus
Intersection
Conic Sections
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