单选题A salinity indicator is used to determine the （）.Acause of salt contaminationBlocation of salt water contaminationCchemical makeup of feed-waterDlevel of alkalinity in condensate
单选题
A salinity indicator is used to determine the （）.
A
cause of salt contamination
B
location of salt water contamination
C
chemical makeup of feed-water
D
level of alkalinity in condensate
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