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根據百分率找數量（一）: 例3的副本
Autor:
冯圣军
,
GeoGebra Institute of Hong Kong
GeoGebra
Nous materials
近似值：有效數字
直角坐標平面上的旋轉變換
sanjiaohanshu
第八周作业
美國國旗 (Claude 版)
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全等三角形: 重溫
An angle problem
Prism and Cylinder 5
橢圓3-平行四邊形法
Addition and Subtraction of Directed Numbers (1)
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Cub
Cosinus
Nombres reals
Trapezoide
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