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圓內擺線
Author:
dunst kang
GeoGebra
New Resources
正方形雪花图案
常见四边形是否是双心四边形
球体的截面
第三周作业效果演示
椭圆内切圆链
Discover Resources
优秀资源
軌跡觀察---兩軸上的固定長定點軌跡
太陽系的認識(問答)
homework
兩圓位置關係
Discover Topics
Statistical Characteristics
Parametric Curves
Rational Numbers
General Quadrilateral
Continuity