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纏繞畫
Author:
高三忠 34 陳品葳
GeoGebra
New Resources
折扣
异形操场
撒针估算面积实验
三角函数 的副本
双心四边形
Discover Resources
最簡分數
小青蛙
題四
动点问题
蝴蝶定理（唐老师的课程）
Discover Topics
Multiplication
Vectors 3D (Three-Dimensional)
Calculus
Perimeter
Pythagoras or Pythagorean Theorem