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when does an object expand?.when it is cold B.when it is hot C.when it is broken

分类: 作业答案 • 2021-12-19 19:18:57

问题描述：

when does an object expand?.when it is cold B.when it is hot C.when it is broken

答

如果不是脑筋急转弯的话应该是B.热胀冷缩