单选题Which of the turbo-charging methods listed directs the exhaust gases to the turbine at fairly uniform velocity and pressure?（）AConstant pressureBPulseCconstant velocityDAxial flow
单选题
Which of the turbo-charging methods listed directs the exhaust gases to the turbine at fairly uniform velocity and pressure?（）
A
Constant pressure
B
Pulse
C
constant velocity
D
Axial flow
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解析：
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