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畢氏數
Author:
jh-chou
GeoGebra
New Resources
錐體建築師
三位數除以一位數（二）
算柱 (兩位數)
拼砌四邊形
異分母分數減法
Discover Resources
Li Shan Lan Cone Logarithm
slide
Origami-Trisect An Angle
三角形
剪切成正三棱柱（制作：李三军，修订：孟宝兴）
Discover Topics
Vectors 2D (Two-Dimensional)
Calculus
Arithmetic Operations
Vectors
Mathematics