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GeoGebra
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未命名
Author:
林峰
GeoGebra
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球体的截面
活动三:应用性质
中华人民共和国国旗
第八周作业2
异形操场
Discover Resources
Testing
平行四邊形的組合
拼貼3
正立方體->菱形十二面體(滑桿動畫)
动态专题—角度旋转
Discover Topics
Line Segment
Sine
Tangent Line or Tangent
Isosceles Triangles
Optimization Problems