The relative air pressure in the inlet manifold of a turbocharged diesel engine is usually（）<br>A:greater than the average exhaust manifold pressure<br>B:less than the average exhaust manifold pressure<br>C:greater at the turbine wheel than at the impeller<br>D:greater at reduced engine speed

The relative air pressure in the inlet manifold of a turbocharged diesel engine is usually（）
A:greater than the average exhaust manifold pressure
B:less than the average exhaust manifold pressure
C:greater at the turbine wheel than at the impeller
D:greater at reduced engine speed

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