Which of the listed chemicals can be routinely used to maintain the hygienic quality of potable water?（）<br>A:Hydrochloric acid<br>B:Chlorine<br>C:Sulfuric acid<br>D:Zinc chromate

Which of the listed chemicals can be routinely used to maintain the hygienic quality of potable water?（）
A:Hydrochloric acid
B:Chlorine
C:Sulfuric acid
D:Zinc chromate

出自：海船船员证

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