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符成岗
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符成岗
GeoGebra
New Resources
直角坐標平面上的旋轉變換
美國國旗 (Codex 版)
sanjiaohanshu
第八周作业
Nested spiral octagon
Discover Resources
Apollonius Problem poncelet fouche
垂直1
單向函數
圆锥曲线折纸操作题（教材案例）
sin(x) 的函數圖形的副本
Discover Topics
Limits
Linear Programming or Linear Optimization
Diagrams
Vectors
Rotation