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拋物線
Author:
Ho-Kai Chen
Topic:
Parabola
GeoGebra
New Resources
兩位數除以一位數（二）
三位數除以一位數（一）
第八周作业
異分母分數減法
画直线等分三角形的面积
Discover Resources
三角函數圖解
圆锥曲线包络
zztest
時鐘與數學
鉛筆畫圓
Discover Topics
Percentages
Rotation
Line Segment
Trapezoid
Equilateral Triangles