Light travels along --------line, Straight, Side, Right, Left, Any polished or shiny surface acts as a --------, Mirror, Real image, Virtual image, Rear view, A concave mirror can form a --------image, Erect, Spherical, Side, Left side, White light is composed of -------- colors, Seven, Six, Four, Three, When the object is close to theconvex lens which image is formed --------, Virtual, Smaller, Spherical, Real

light

由
打印
嵌入

排行榜

视觉风格

选项

切换模板

恢复自动保存：？