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Author:
侯孟宏
GeoGebra
New Resources
撒针估算面积实验
盈利與虧蝕
正方形雪花图案
祖冲之的期望:内棋与外棋
活动三:应用性质
Discover Resources
弦的中點軌跡
學測105-2
約分
圆锥截面为圆椭圆双曲线抛物线的动画显示.许兴华数学
折纸角度探究
Discover Topics
Tree Diagrams
Frequency Distribution
Diagrams
Vectors 2D (Two-Dimensional)
Arithmetic Operations