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ie 2
Author:
LAM YU SANG
GeoGebra
New Resources
畫出對稱圖形
兩位數除以一位數(一)
【案例】2013年安徽高考15题
異分母分數減法
四邊形的特性
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圖形拼砌
过圆上一点作切线,三步
GGB分解的按鈕設計
城市
鸚鵡螺旋線
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Rational Numbers
Pyramid
Multiplication
Rhombus
Ratios