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Watch Later 7:46

【呂老師的數學教室】咩叫離差 dispersion？#F5 Ch.11.1

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【呂老師的數學教室】中五數學 ch 10 三角學的應用：Quiz

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【呂老師的數學教室】中五數學 ch 10 三角學的應用：3D 兩平面交角、最短距離

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【呂老師的數學教室】中五數學 ch 10 三角學的應用：2D 仰角、俯角、方位角、象限角

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Biological concepts Ch.11 (7) - The significance of mitotic division

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Biological concepts Ch.11 (6) - The process of cytoplasmic division

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Biological concepts Ch.11 (5) - The process of mitotic division

YU CHUN KEUNG MEMORIAL COLLEGE