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Watch Later 3:57

18-19 F.5 物理 - 光學 2 - 4

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18-19 F.5 物理 - 光學 2 - 3

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18-19 F.5 物理 - 光學 2 - 2

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18-19 F.5 物理 - 光學 2 - 1

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F.2_第9.2C章_三角形的角及演繹幾何示範5(三角形內角和)

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F.2_第9.2B2章_演繹幾何示範4(內錯角相等)

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F.2_第9.2B1章_平行線上的角

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F.2_第9.2A4章_演繹幾何示範3(同頂角)

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F.2_第9.2A3章_演繹幾何示範2(對頂角)

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