A、A.aeration tanks
B、B.settling tanks
C、C.disinfection agent
D、D.anaerobic bacteria
更多“Most marine biological sewage treatment plants consist of all the following statements except （）.”相关的问题
A、it has the most beautiful seascape in the world B、it has the greatest number of islands in the world C、it has the most diverse and complex marine life in the world D、it has the longest coast in the world
A、marine broadcast Notice to Mariners B、Weekly Notices to Mariners C、corrected editions of charts D、Light Lists
A、A.of the diaphragm type B、B.of the centrifugal type C、C.of the positive displacement type D、D.independently driven by electric motors
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