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太极图
Author:
吕胜
GeoGebra
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【案例】2018年全国1卷理科12题
四邊形的特性
四邉形 (四年級) 教師版
找出對稱軸
GeoGebra笔记功能体验课件
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Angle at Centre & Angle at Circumference: Proof 圓心角與圓周角：証明
工作紙題2
ma_test
不規則圖形的周界(step3)
规律点问题的动态演示-案例一
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Integers
Circumcircle or Circumscribed Circle
Means
Ratios
Root