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20161110試算表紅玫瑰
Author:
susan
GeoGebra
New Resources
折扣
三角函数 的副本
百分數及其應用
常见四边形是否是双心四边形
正方形雪花图案
Discover Resources
normal vector
圓周 (圖形B)
認識時間
時鐘與數學
Copy of 「相似三角形」任务2
Discover Topics
Multiplication
Means
Exponential Functions
Rational Numbers
Sphere