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Author:
Yin Kelvin Wong
GeoGebra
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【案例】2018年全国1卷理科12题
三位數除以一位數(二)
近似值:有效數字
兩位數除以一位數(一)
四邉形 (四年級) 教師版
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橢圓的定義畫圖
多物件逐一動畫
曲面指令练习(柱球转化)
柱體建築師 1的副本
圓錐截痕
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Circumcircle or Circumscribed Circle
Equilateral Triangles
Congruence
Random Variables
Quadrilaterals