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教學－與直線有關的角
Author:
Lau Sir
GeoGebra
New Resources
三角函数 的副本
垂直線的斜率
讀磅
百分數及其應用
直線的斜率：水平變化 & 鉛垂變化
Discover Resources
菱形
Multiplication of Polynomials(多項式的乘法)
Rectangle
自學練習_兩位數除兩位數
仿真时钟2.0
Discover Topics
Hypothesis Testing
Cylinder
Straight Lines
Area
Continuity