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速度与机械运动

> 下列估测中，最接近实际的是 A.上海冬季的最低气温可达-20℃ B.正常人的正常步行速度约1.2米/秒 C.一盏家用白炽灯的正常工作电流约2安 D.一本物理教材的质量约2.5千克

问题：

发布时间：2024-09-10

下列估测中，最接近实际的是

A.上海冬季的最低气温可达-20℃
B.正常人的正常步行速度约1.2米/秒
C.一盏家用白炽灯的正常工作电流约2安
D.一本物理教材的质量约2.5千克

参考答案：

提问用户：1a***nHF

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