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几何光学-球面-折射-凹面-王翚
Author:
王翚
GeoGebra
New Resources
球体的体积推导(优化版)
拼砌四邊形
四邉形 (四年級) 教師版
兩位數除以一位數(一)
兩組對邊相等和有直角的四邊形
Discover Resources
平行線 (同位角 - 位置)
題3
Circle
圓形重疊問題
萬花筒
Discover Topics
Parabola
Complex Numbers
Median Line
Ratios
Line Segment