同学们做“探究凸透镜成像的规律 实验请回答以下问题1调整凸透镜光屏和烛焰的高度使它们的中心在 .2把蜡烛放在该凸透镜的焦点上 Template




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tomski同学们做“探究凸透镜成像的规律 实验请回答以下问题1调整凸透镜光屏和烛焰的高度使它们的中心在 .2把蜡烛放在该凸透镜的焦点上 coloring