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任务13：随机转盘
Author:
陈丽婷
GeoGebra
New Resources
双心四边形
盈利與虧蝕
第八周作业2
百分數及其應用
正方形雪花图案
Discover Resources
区域积分例子
正三角形
堆垛
原點對稱1
两个等腰三角形
Discover Topics
Subtraction
Logarithmic Functions
Special Points
Complex Numbers
Polygons