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部分佔全部的百分率: 例3的副本
Author:
冯圣军
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
兩位數除以一位數（一）
GeoGebra笔记功能体验课件
兩組對邊相等和有直角的四邊形
找出對稱軸
四邉形 (四年級) 教師版
Discover Resources
分數乘法與除法
偏心的農夫?
Perpendicular lines
qid_39321
腳踏車風火輪
Discover Topics
Symmetry
Integers
Ratios
Special Points
Logarithm