【毎日一問】汚水知識-098(6月11日)(回答+2、正解+4)
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この投稿は、2015年6月21日20時01分に五郎八卦棍によって最終的に編集されました。単択問題:汚泥再循環の主な目的は、曝気槽内の( )を維持することです。
A.MLSS B.DO C.MLVSS D.SVl 答え:A.MLSS、
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