铜的比热是铅的比热的三倍,使铅块温度升高24℃所需的热量可以使

铜的比热是铅的比热的三倍,使铅块温度升高24℃所需的热量可以使相同质量的铜块升温:[ ]

A.12 B.72 C.8 D.无法确定

答案

C

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