阳性肥皂液消毒剂,其有效杀菌浓度为()之阳性肥皂苯基氯卡铵A、0.1~0.5%B、0.5~1%C、1~3%D、3~6%
阳性肥皂液消毒剂,其有效杀菌浓度为()之阳性肥皂苯基氯卡铵
- A、0.1~0.5%
- B、0.5~1%
- C、1~3%
- D、3~6%
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成人肥皂液灌肠的浓度及量的要求是A.0.1%~0.2%,500~1000mlB.0.2%~0.5%,300~500mlC.1%~2%,500~1000mlD.0.5%,500mlE.0.2%~0.5%,500~1000ml
单选题水源加氟是一种有效的防龋手段,我国的水质标准氟浓度为( )。A(0.5~1)×10-6(0.5~lppm)B(0.1~0.5)×10-6(0.1~0.5ppm)C(0.05~1)×10-6(0.05~0.1ppm)D(1~5)×10-6(1~5ppm)E(5~10)×10-6(5~10ppm)