下列光学现象及其解释正确的是a投影仪是利用凸透镜成像的原理工作的.在屏幕上成的是正立放大的虚像b早在2000多年前中记载的小孔成像实验 Template




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tomski下列光学现象及其解释正确的是a投影仪是利用凸透镜成像的原理工作的.在屏幕上成的是正立放大的虚像b早在2000多年前中记载的小孔成像实验 coloring