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[中考] 2014 北京-08-封闭图形上的动点距离
Author:
洋葱教研
GeoGebra
New Resources
活动三：应用性质
斐波那契螺旋弧线（表格法-可动态调节）
双心四边形
异形操场
常见四边形是否是双心四边形
Discover Resources
圓 點 直線
龍騰4_1-1課例3
Sequence指令練習(二維4)
Crayon shin-chan, Episode 1232, Cut
扇形在射线上滚动
Discover Topics
Parametric Curves
Ellipse
Arithmetic Operations
Rotation
Rhombus