（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant. -题库考试答案搜索网

（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.

单选题

2022-01-03 11:27

A、anaerobic bacteria
B、aerobic bacteria
C、air bubbles
D、disinfection chemical

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正确答案

B

试题解析

标签：船舶电气与船舶安全

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