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月球公轉軌跡及月相
Author:
ricky
GeoGebra
New Resources
活动三：应用性质
正方形雪花图案
第八周作业2
撒针估算面积实验
双心四边形
Discover Resources
史坦納圓鍊 (Steiner Chain)
相同圖形的拼砌（三角形）
S3 Volume and Area
向量分解的副本
用向量找北极星
Discover Topics
Percentages
Function Graph
Perimeter
Polynomial Functions
Linear Programming or Linear Optimization