Improper maintenance of an automatic auxiliary boiler oil burner could result in （）.<br>A:fuel pump failure<br>B:fan motor failure<br>C:increased feedwater consumption<br>D:decreased boiler efficiency

Improper maintenance of an automatic auxiliary boiler oil burner could result in （）.
A:fuel pump failure
B:fan motor failure
C:increased feedwater consumption
D:decreased boiler efficiency

出自：海船船员证

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