The rate of heat transfer from a hot region to a cold region is affected most by the （）.<br>A:size of the heat sink<br>B:temperature difference between the regions<br>C:size of the heat source<br>D:total heat of the system

The rate of heat transfer from a hot region to a cold region is affected most by the （）.
A:size of the heat sink
B:temperature difference between the regions
C:size of the heat source
D:total heat of the system

出自：海船船员证

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