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梯形有甚麼特性?
Author:
Anthony OR 柯志明
English version:
http://ggbtu.be/m79855
GeoGebra
New Resources
兩位數除以一位數(一)
異分母分數減法
三位數除以一位數(二)
算柱 (兩位數)
【案例】2013年安徽高考15题
Discover Resources
尋找極小值
算幾不等式
zuiduan
拋物線代數性質,光學性質
折纸角度探究2
Discover Topics
Matrices
Definite Integral
Calculus
Planes
Sphere