单选题Faulty operation of diesel engine fuel injection nozzles can be directly caused by （）.Awater in the fuel oil supplyBexcessive fuel nozzle holder coolingCa distorted fuel spray patternDleakage past the plunger into the oil drain
单选题
Faulty operation of diesel engine fuel injection nozzles can be directly caused by （）.
A
water in the fuel oil supply
B
excessive fuel nozzle holder cooling
C
a distorted fuel spray pattern
D
leakage past the plunger into the oil drain
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