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play tennis
Author:
李春培
play tennis
GeoGebra
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兩位數除以一位數（一）
拼砌四邊形
第八周作业
【案例】2018年全国1卷理科12题
兩組對邊相等的四邊形
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test
習作A三ch1_11
Copy of 韻01
永春高中研習
放射狀旋轉圖形(1)
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Linear Functions
Coordinates
Boxplot
General Quadrilateral
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