当前位置:在线题库搜索>[单选题]The basic process of biological sewage treatment consists of the liquor either by bubbling air through it or by agitating the surface()的答案是什么?

问题:

[单选题]The basic process of biological sewage treatment consists of the liquor either by bubbling air through it or by agitating the surface()

A、oxygenating
B、oxidizing
C、deoxygenating
D、proportioning

参考答案: A

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