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椭圆的定义
Author:
guomenglin
Topic:
Ellipse
GeoGebra
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四邊形的特性
兩位數除以一位數(一)
畫出對稱圖形
四邉形 (四年級) 教師版
找出對稱軸
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相似形的題目
生活中的平面圖形問題2
九點圓
螢橋國中 洪芷昀
活工(二)Q2
Discover Topics
Difference and Slope
Definite Integral
Differential Equation
Percentages
Intersection