单选题Engine displacement is equal to the cylinder （）.Aarea times the strokeBarea times the stroke, times the number of cylindersCvolume times the strokeDvolume times the stroke, times the number of cylinders
单选题
Engine displacement is equal to the cylinder （）.
A
area times the stroke
B
area times the stroke, times the number of cylinders
C
volume times the stroke
D
volume times the stroke, times the number of cylinders
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