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Author:
王乐
GeoGebra
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斐波那契螺旋弧线（表格法）
双心四边形
折扣
第八周作业
第八周作业3
Discover Resources
Functions
柯西不等式 (2)
六下_圓周(學生版) v2.1
立體圖形的特徵
operations of matrix 2rd ver
Discover Topics
Cube
Cylinder
Optimization Problems
Parallelogram
Numbers