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賺賠：例1的副本
Author:
冯圣军
,
GeoGebra Institute of Hong Kong
賺賠
GeoGebra
New Resources
拼砌四邊形
四邊形的特性
画直线等分三角形的面积
兩位數除以一位數（一）
錐體建築師
Discover Resources
The relation between Circular Motion &Simple Harmonic Motion
畢式定理 (09)
煞車
四年級_四邊形
test
Discover Topics
Quadratic Functions
Congruence
Geometric Transformations
Integers
Exponential Functions