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圖形的周界
Author:
spkwan
GeoGebra
New Resources
GeoGebra笔记功能体验课件
第八周作业
畫出對稱圖形
拼砌四邊形
三位數除以一位數（一）
Discover Resources
轨迹2016.4.16
三圓外切
多重刻度磅
Addition and Subtraction of Polynomials 1(多項式的加減法 1)
有理数与无理数
Discover Topics
Differential Calculus
Trigonometric Functions
Straight Lines
Vectors
Linear Regression