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優良作品4(昀潔)
Author:
Ching-Hui Chou
GeoGebra
New Resources
折扣
第八周作业1
第三周作业效果演示
撒针估算面积实验
球体的截面
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六年級
向量相加
平行線 (同位角 - 位置)
動國旗
椭圆规
Discover Topics
Perimeter
Secant Line or Secant
Sine
Algebra
Similar Triangles