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橢圓練習
Author:
ryan huang
GeoGebra
New Resources
判斷球體
異分母分數減法
直角坐標平面上的旋轉變換
兩位數除以一位數（一）
找出對稱軸
Discover Resources
排列組合
海市蜃樓現象
Rectangle_03
階梯問題
李樂雯_尋找PI的活動
Discover Topics
Probability
Translation
Parallelogram
Scalene Triangles
Line Segment