Which of the following statements is true concerning the cetane number of diesel fuel?（）<br>A:The cetane number affects the amount of injection lag<br>B:The cetane number is an indication of the fuels viscosity<br>C:Ignition lag is reduced with fuels having a high cetane number<br>D:The cetane number is of little significance in the combustion process

Which of the following statements is true concerning the cetane number of diesel fuel?（）
A:The cetane number affects the amount of injection lag
B:The cetane number is an indication of the fuels viscosity
C:Ignition lag is reduced with fuels having a high cetane number
D:The cetane number is of little significance in the combustion process

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