单选题When the fuel oil is burning in the combustion chamber, it （）.Agives up large amount of heatBgives off large amount of heatCgives up large amount of steamDgives off large amount of steam
单选题
When the fuel oil is burning in the combustion chamber, it （）.
A
gives up large amount of heat
B
gives off large amount of heat
C
gives up large amount of steam
D
gives off large amount of steam
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