单选题The ignition quality of a fuel oil is an important operational consideration because it（）Aindicates the amount of abrasive material in the fuelBaffects the starting ability of a cold engineCdetermines the amount of fuel penetration engineDaffects the compression ratio of an operating engine
单选题
The ignition quality of a fuel oil is an important operational consideration because it（）
A
indicates the amount of abrasive material in the fuel
B
affects the starting ability of a cold engine
C
determines the amount of fuel penetration engine
D
affects the compression ratio of an operating engine
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