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菱形有甚麼特性？
Author:
Anthony OR 柯志明
English version:
http://ggbtu.be/m79847
GeoGebra
New Resources
異分母分數減法
四邊形的特性
兩位數除以一位數（一）
第八周作业
球體建築師
Discover Resources
光芒之星
Is this a prism 4
P4 四邊形
錯角練習
圓與切線
Discover Topics
Normal Distribution
Fractions
Matrices
Parametric Curves
Pyramid