【毎日一問】汚水知識-8月29日(回答+2、正解+4)
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この投稿は、2015年9月8日15時55分に五郎八卦棍によって最終的に編集されました。判断問題:高い汚泥濃度は混合液の粘性を変え、拡散抵抗を減少させるため、酸素の利用効率が向上する。
A. 正しい;B、誤り 答え:B、誤り
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