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单选题

Dirt lodged on the nozzle valve seat of a fuel injection nozzle will cause _____.

Ainsufficient fuel delivery through that nozzle

Bfuel leakage into the nozzle drain line

Cfuel leakage before and after injection

Derosion and cratering of the nozzle orifices

正确答案:A (备注:此答案有误)

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