单选题However fast or slow the combustion rate, it is still a （） between carbon, hydrogen, sulphur and oxygen that releases heat.Aphysical deformationBstate exchangeCchemical reactionDcoalescence
单选题
However fast or slow the combustion rate, it is still a （） between carbon, hydrogen, sulphur and oxygen that releases heat.
A
physical deformation
B
state exchange
C
chemical reaction
D
coalescence
参考解析
解析：
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