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动点问题（线段最小值）
Author:
杨桃李@
GeoGebra
New Resources
龙形曲线-分形龙
直線的斜率：水平變化 & 鉛垂變化
平行線的判定
盈利與虧蝕
中华人民共和国国旗
Discover Resources
阿基米德(4,6,6)
Addition and Subtraction of Directed Numbers (2) 有向數加減(2)
Sequence指令練習(二維3)
包路線
二項分佈 的複本
Discover Topics
Derivative
Cuboid
Solids or 3D Shapes
Calculus
Equilateral Triangles