单选题The procedures recommended for auxiliary boilers having high salinity include （）.Atreating with oxygen scavengersBsecuring the boiler and giving it a blowing downCincreasing the pHDreducing the phosphate level
单选题
The procedures recommended for auxiliary boilers having high salinity include （）.
A
treating with oxygen scavengers
B
securing the boiler and giving it a blowing down
C
increasing the pH
D
reducing the phosphate level
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