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问题

A diesel engine cooling water system with a pH factor of 3.0 indicates a condition of ____


A diesel engine cooling water system with a pH factor of 3.0 indicates a condition of _____.

A.slight acidity

B.slight alkalinity

C.excessive alkalinity

D.excessive acidity

请帮忙给出正确答案和分析,谢谢!

参考答案
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