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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
算柱 (兩位數)
拼砌四邊形
Earth with coastline
近似值：有效數字
第八周作业
Discover Resources
六下_圓周(教師版)
二次函數「一般式」平移(進階)
四角錐體
鸚鵡螺旋線
抛物线的定义
Discover Topics
Bar Chart or Bar Graph
Root
Diagrams
Square
Trapezoid