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Author:
tao sun
GeoGebra
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撒针估算面积实验
折扣
比較五件物件的重量
科氏力 (Coriolis Force)
第三周作业效果演示
Discover Resources
waaachen
三角函數的性質
Introduction to Trigonometry from a Unit Circle
拋物線
活动三：应用性质
Discover Topics
Isosceles Triangles
Tangent Function
Similar Triangles
Arithmetic Operations
Cone