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大气折射
Author:
褚 军
Topic:
Trigonometric Functions
GeoGebra
New Resources
第三周作业效果演示
撒针估算面积实验
平行線的判定
GeoGebra数学资源(4-8年级)
异形操场
Discover Resources
風車
圆的面积 - 排列组合法
平行線 (同位角 - 4對)
迭帶
project euler202(反射光线路线数)
Discover Topics
Curve Sketching
Isosceles Triangles
Equations
Interest Calculation
Secant Line or Secant