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椭圆的光学性质
Author:
孟宝兴
GeoGebra
New Resources
算柱 (兩位數)
直角坐標平面上的旋轉變換
三位數除以一位數（一）
兩位數除以一位數（二）
兩組對邊相等和有直角的四邊形
Discover Resources
豆奶
Square pyramid
三角柱算體積
纏繞畫
Parallelogram
Discover Topics
Linear Regression
Median Line
Prism
Cuboid
Continuity