单选题Which of the following conditions could cause the feed pump for an auxiliary boiler to lose suction?（）AIncreased suction head pressureBDecreased feedwater temperatureCPump recirculating line being open too muchDExcessive feedwater temperature
单选题
Which of the following conditions could cause the feed pump for an auxiliary boiler to lose suction?（）
A
Increased suction head pressure
B
Decreased feedwater temperature
C
Pump recirculating line being open too much
D
Excessive feedwater temperature
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