在探究凸透镜成像规律的实验中当两支点燃的蜡烛凸 透镜和光屏分别置于图9所示的位置时光屏上cd两处会得 到清晰 选填“缩小 “等大 Template




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tomski在探究凸透镜成像规律的实验中当两支点燃的蜡烛凸 透镜和光屏分别置于图9所示的位置时光屏上cd两处会得 到清晰 coloring