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下和與上和
Author:
侯杰材
下和與上和
GeoGebra
New Resources
椭圆内切圆链
斐波那契螺旋弧线(表格法)
百分數及其應用
GeoGebra数学资源(4-8年级)
常见四边形是否是双心四边形
Discover Resources
百分數
柱體和錐體
加法運算
三角形三內角和
GGB9
Discover Topics
Linear Equations
Normal Distribution
Quadrilaterals
Triangles
Stochastic Process or Random Process