Keith Ko – Resources – GeoGebra

Copy of 部分佔全部的百分率: 例1
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Keith Ko
Copy of 閱讀鐘面及數字鐘（時和分）
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Keith Ko
Testing
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Keith Ko
圓周 (圖形I)
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Keith Ko
圓周 (圖形H)
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Keith Ko
圓周 (圖形G)
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Keith Ko
圓周 (圖形F)
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Keith Ko
圓周 (圖形E)
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Keith Ko
圓周 (圖形D)
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Keith Ko
圓周 (圖形C)
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Keith Ko
圓周 (圖形B)
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Keith Ko
圓周 (圖形A)
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Keith Ko
小二三畫時鐘
Book
Keith Ko