白炽电灯是人们常用的照明用具如图所示 根据你对白炽灯的了解请提出两个与物理知识有关的问 题并针对提出的问题作出简要的回答 例如问题 Template




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tomski白炽电灯是人们常用的照明用具如图所示 根据你对白炽灯的了解请提出两个与物理知识有关的问 题并针对提出的问题作出简要的回答 coloring