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折扣 例4
Author:
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
找出對稱軸
四邊形的特性
兩位數除以一位數（一）
第八周作业
兩組對邊相等和有直角的四邊形
Discover Resources
圓周角的度數
區塊斜線教學
數織Nonogram
分苹果除法
一半模型归纳
Discover Topics
Variance
Subtraction
Line Segment
Linear Equations
Linear Functions