单选题The spreading of fire as a result of heat being carried through a vessels ventilation system, is an example of heat transfer by （）.AconductionBconvectionCradiationDwindage
单选题
The spreading of fire as a result of heat being carried through a vessels ventilation system, is an example of heat transfer by （）.
A
conduction
B
convection
C
radiation
D
windage
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