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【单选题】
某工业废水COD浓度大于20000 mg/L,用厌氧生物滤池处理该废水时,需采用出水回流的措施。下列哪项与出水回流措施无关?( )A.
减少对碱度的需求量
B.
降低滤池进水的COD浓度
C.
降低厌氧生物滤池的容积负荷
D.
改善配水的均匀性
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皮皮学刷刷变学霸
举一反三
【单选题】Recently a survey________prices of the same goods in two different supermarkets has caused a heated debate among citizens.
A.
compared
B.
comparing
C.
being compared
D.
compares
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【简答题】下列有关会计估计变更的表述中，正确的有（ ）。
【简答题】adj. able to return or be changed to a previous state
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