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Author:
军云
GeoGebra
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拼砌四邊形
四邉形 (四年級) 教師版
畫出對稱圖形
兩位數除以一位數(一)
【案例】2018年全国1卷理科12题
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畫圖.....
線性規劃 - 數學技巧2
多項式
Primeter
弦心距
擲兩個硬幣的機率分布的副本
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Right Triangles
Arithmetic Mean
Limits
Tangent Function
Multiplication