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根據百分率找數量（一）: 例3的副本
Author:
冯圣军
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
國旗 (作圖步驟直接餵給 Claude)
Earth with coastline
近似值：有效數字
國旗 (Claude 版)
畫出對稱圖形
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