单选题Which of the following can be obtained by means of an indicator card?（）Athe peak pressure in a cylinderBthe temperature of the cooling waterCthe fuel consumptionDnone of the above
单选题
Which of the following can be obtained by means of an indicator card?（）
A
the peak pressure in a cylinder
B
the temperature of the cooling water
C
the fuel consumption
D
none of the above
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