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[洋葱] 平行线分线段成比例(0530)
Author:
acchu
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
畫出對稱圖形
兩位數除以一位數（二）
兩位數除以一位數（一）
第八周作业
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盒子的體積
Graphs of Linear Equations in Two Unknowns 二元一次方程的圖像
九點共圓
百分數與分數
切線 (The Tangent Line)
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Statistical Characteristics
Multiplication
Congruence
Ellipse
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