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科赫雪花
Author:
孟宝兴
GeoGebra
New Resources
三位數除以一位數（一）
【案例】2013年安徽高考15题
找出對稱軸
拼砌四邊形
兩組對邊相等和有直角的四邊形
Discover Resources
Angle between a Line and a Plane 投影與線面角
量角器
圆锥侧面的展开
周界與面積
〃One〃
Discover Topics
Histogram
Angles
Exponential Functions
Circumcircle or Circumscribed Circle
Curve Sketching