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Author:
lzp80
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
兩位數加法
GeoGebra笔记功能体验课件
第八周作业
三位數除以一位數（二）
Discover Resources
立方體截痕
中學(高中)
angles sum on a striaght line
四年級
GGB研習成果01
Discover Topics
Equilateral Triangles
Equations
Pythagoras or Pythagorean Theorem
Rational Numbers
Symmetry