环保工程师试题

21ABCDd2A1nmB1~100nmC100nmD10000nmb3pHAmg/LBkg/m3Cg/LDg/mLa4A5m/sB10m/sC6m/sD2m/sa5ASSTSBDSTSCDSSSDCODBODc6200~300mmA0.55B0.65C0.75D0.85a7m/sA0.15B0.3C0.6D1.0a85~15minABCDa9A0.5mB0.6mC0.7mD0.8mc10BOD5A65%~80%B60%~80%C65%~90%D50%~80%c11ABCDc12ABCDc1324h48h50%ATODBTOCCTLMDTSc14150~250mm96%m/sA0.8B1.0C0.9D1.1c15ABCDa16A0.1mg/L0.01mg/LB0.2mg/L0.02mg/LC0.02mg/L0.2mg/LD0.01mg/L0.1mg/Lb17ABCDa18ABCDb191/50ABCDc20ABCDb21ABCDa22ABC6%~8%10%~16%Db23cDN50024800~1000mmmA30B50C70D90c25ABCDcC26hA2B3C4D5d27ABCDpHCODBODTODTOCb28ABCDc29AB5dCDc30hA12~15B2~5C22~25D32~35b30hA12~15B2~5C22~25D32~35b31ABCDb32sA30B60C90D120a33A:BCDa34mmA16~25B25~40C40~50D50~60a35ABCDb36ABCDa3797%94%A1/2B1/3C1/4D2/3a38ABCDb39ABCDd40ABCDb41mA0.2B0.15C0.3D0.25b42A1B2C3D4b43ABCDc44mg/LA1B2C3D4b45ABCDc46ABCDd47ABCDb48ABCDa49ABCDa50ABCDa51ABCDd52ABCDa53ABCDd54ABCDb55ABCDd