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单选题 Primary treatment is( )that remove nonhomogenizable solids and homogenize the remaining effluent
学科：2023-2024-1专业英语
时间：2023-09-16 10:54:39
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题目1单选题
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题目2单选题
Microorganisms are separated from the liquid in( )A. a primary clarifierB. an aeration tankC. a final clarifierD. a digesting tank
题目3单选题
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题目4单选题
As with coagulants,these aids should preferably be()A. nocuousB. innocuousC. feasibleD. favorably
题目5单选题
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题目6单选题
Activated sludge is a stepA. biologicalB. chemicalC. physicalD. medical
题目7单选题
If the tank volume is 120 m³ and the flow rate is 2 m³/min,how long is the retention timeA. 30 minB. 40 minC. 50 minD. 60 min
题目8单选题
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题目9单选题
Primary treatment is( )that remove nonhomogenizable solids and homogenize the remaining effluentA. physical processB. chemical processC. biological processD. all of the above
题目10单选题
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