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上色練習
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一路梁
GeoGebra
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第三周作业效果演示
斐波那契螺旋弧线(表格法-可动态调节)
小学资源收集
球体的截面
中华人民共和国国旗
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香港的硬幣
正n凸多邊形旋轉對稱/反射對稱
拋物線的疊合
B3C2-2例6-1
QQ空间
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Integral Calculus
Linear Programming or Linear Optimization
Statistics
Right Triangles
Multiplication