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Keith Ko

  • Copy of 部分佔全部的百分率: 例1

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  • Copy of 閱讀鐘面及數字鐘(時和分)

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  • Testing

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  • 圓周 (圖形I)

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  • 圓周 (圖形H)

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  • 圓周 (圖形G)

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  • 圓周 (圖形F)

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  • 圓周 (圖形E)

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  • 圓周 (圖形D)

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  • 圓周 (圖形C)

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  • 圓周 (圖形B)

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  • 圓周 (圖形A)

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  • 小二三 畫時鐘

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