单选题The amount of chloride content in the water of an auxiliary boiler can be reduced by（）Aadding hydrazineBblowing down the boilerCadding phenolphthaleinDadding a sulfite chloride scavenger
单选题
The amount of chloride content in the water of an auxiliary boiler can be reduced by（）
A
adding hydrazine
B
blowing down the boiler
C
adding phenolphthalein
D
adding a sulfite chloride scavenger
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