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迭代2
Author:
cl
GeoGebra
New Resources
龙形曲线-分形龙
第三周作业效果演示
斐波那契螺旋弧线（表格法-可动态调节）
常见四边形是否是双心四边形
第八周作业1
Discover Resources
Is this a prism 9
GeoGebraBook(for20151202)
perimeter
三角測量02
凸透镜成像
Discover Topics
Fractions
Vectors
Rotation
Prism
Trigonometric Functions