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twghmkc P4 ch1-2
Author:
Meiki
GeoGebra
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【案例】2013年安徽高考15题
兩組對邊相等和有直角的四邊形
四邉形 (四年級) 教師版
畫出對稱圖形
兩位數除以一位數（二）
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垂足三角形
Test1
平行線
Locus指令的練習
走进图形世界
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Continuity
Interest Calculation
Symmetry
Optimization Problems
Equations