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伯恩斯坦
Author:
张清林
GeoGebra
New Resources
空间中两直线的位置关系
第八周作业
漂亮的摇摆曲线
平行線的斜率
兩位數除以一位數（一）
Discover Resources
磁磚著色
畢式定理 (08)
平行四邊形面積
Copy of 劉徽的「割圓術」
任務2的副本
Discover Topics
Congruence
Circumcircle or Circumscribed Circle
Planes
Vectors 2D (Two-Dimensional)
Pythagoras or Pythagorean Theorem