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拋物線2-焦點法
Author:
30張婷淯
GeoGebra
New Resources
拼砌四邊形
畫出對稱圖形
球體建築師
異分母分數減法
兩位數除以一位數（二）
Discover Resources
上和與下和
Rotational symmetry of triangular prism
测试
reflection of tetrahedron
金惠吉：光的反射与折射
Discover Topics
Probability
Scatter Plot
Expected Value
Curve Sketching
Square