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ABC 2
Author:
yatan1018
GeoGebra
New Resources
四邉形 (四年級) 教師版
三位數除以一位數（一）
【案例】圆柱体内放置一个大球六个小球
判斷球體
画直线等分三角形的面积
Discover Resources
Locus: Equidistance From Two Points
水流問題(黑板)
正弦函数图象
地球各緯度的晝長夜長
椭圆规
Discover Topics
Planes
Difference and Slope
Solids or 3D Shapes
Matrices
Rational Numbers