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俄罗斯方块
Author:
孟宝兴
GeoGebra
New Resources
圓的基本性質
科氏力 (Coriolis Force)
撒针估算面积实验
平行線的斜率
斜率的值
Discover Resources
Ray tracing
GGB分解的按鈕設計
平面幾何的思考
同旁內角---不平行綫
垂心
Discover Topics
Pyramid
Mode
Optimization Problems
Similarity Transformation or Similarity
Diagrams