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時鐘
Author:
戴宇宏
GeoGebra
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兩組對邊相等的四邊形
找出對稱軸
兩組對邊相等和有直角的四邊形
兩位數除以一位數（一）
異分母分數減法
Discover Resources
等腰三角形 － 等角對等邊
三角形的构成
向量分解：解聯立
多項式函數
venn图
Discover Topics
Conic Sections
Cylinder
Distributions
Exponential Functions
Difference and Slope