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Author:
许业成
GeoGebra
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【案例】圆柱体内放置一个大球六个小球
異分母分數減法
柱體建築師
兩組對邊相等和有直角的四邊形
判斷球體
Discover Resources
齿轮咬合
Slope
Light reflected in hyperbola
圆锥曲线的第二定义的副本
圆周长演示
Discover Topics
Standard Deviation
Cube
Angles
Parametric Curves
Variance