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Author:
少平 朱
GeoGebra
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第八周作业
三角函数 的副本
异形操场
百分數及其應用
圓的切線方程
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test
周界平移
Conjugate Diameter—共轭直径
mooc第四讲椭圆反射
正弦定理的副本
Discover Topics
Centroid or Barycenter
Cone
Linear Equations
Linear Functions
Square