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Author:
孟宝兴
GeoGebra
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柱體建築師
sanjiaohanshu
判斷球體
異分母分數減法
近似值:有效數字
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優良作品4
Introduce tangent ratio
迭帶
錐體的橫截面
三角形的三个旁切圆.许兴华数学
Discover Topics
Function Graph
Rectangle
Isosceles Triangles
Tangent Line or Tangent
Subtraction