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密鋪5
Author:
chen mingchuan
GeoGebra
New Resources
找出對稱軸
三位數除以一位數（二）
【案例】2018年全国1卷理科12题
四邉形 (四年級) 教師版
四邊形的特性
Discover Resources
彩虹理髮
內擺線
ghseh 二次函數動畫左右平移
Ladder on Wall
同位角__垂直平行綫
Discover Topics
Polygons
Scalene Triangles
Similarity Transformation or Similarity
Arithmetic Operations
Arithmetic