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单选题
To successfully reduce an excessively high diesel engine exhaust gas temperature, you should （）.
A
reduce the engine driven fuel pump outlet pressure
B
retard the fuel injector timing to reduce power
C
increase the fuel rack setting
D
reduce the load on the engine
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单选题Air in the fuel lines to the fuel injection nozzles of a diesel engine will cause the engine to （）A
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overheat without smokingC
operate with reduce power or stopD
run away without load
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