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Which of the following conditions must exist for heat to flow from one object to another?（）

单选题
2022-01-03 00:30
A、The two objects must be in physical contact
B、The two objects must be the same size
C、There must be an existing temperature differential
D、There must be an existing weight differential
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正确答案
C
试题解析
标签： 船舶辅助机械
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