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中三科學（光學）Basic Optics
反射 Reflection of Light by Plane Mirror
平面鏡成像 Plane Mirror
折射及全內反射 Refraction & Total Internal Reflection
凸透鏡 Convex Lens
凹透鏡 Concave Lens
中三科學（光學）Basic Optics
Autor:
Alex CHIK
反射 Reflection of Light by Plane Mirror
平面鏡成像 Plane Mirror
折射及全內反射 Refraction & Total Internal Reflection
凸透鏡 Convex Lens
凹透鏡 Concave Lens
Próximo
反射 Reflection of Light by Plane Mirror
Novos Materiais
錐體建築師
異分母分數減法
三位數除以一位數（二）
兩位數加法
拼砌四邊形
Descobrir recursos
Area of Trapezium
GGBScript
圓形單獨滑動
拼貼動畫
二面角的夹角
Explorar Tópicos
BoxPlot
Gráfico de Barras
Números complexos
Função Tangente
Parábola
