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教學－與直線有關的角
Author:
Lau Sir
New Resources
三角函數出題器2.0
正弦函数自变量的几何显示
同位角/内错角/同旁内角
日照与影长
possion
Discover Resources
未完成的版本
games
angle
勾股定理
导数的几何意义
Discover Topics
Symmetry
Rational Numbers
Continuity
Natural Numbers
Fractal Geometry
