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圆在直线上滚动
Author:
冯伟冀
Topic:
Geometry
GeoGebra
New Resources
拼砌四邊形
兩位數加法
三位數除以一位數（一）
【案例】2018年全国1卷理科12题
找出對稱軸
Discover Resources
Task 3 Isosceles Triangle
version 1
Linear Programming
弹簧振子的 简谐运动
重要的馬克勞林級數 (Some Important Maclaurin Series)
Discover Topics
Parallelogram
Rational Numbers
Geometric Distribution
Reflection
Incircle or Inscribed Circle