原液浓度为5%的含氯消毒液，配制浓度1000mg/L的含氯消毒溶液1000mL，需要取原液（）mL？

A.A.500mg/L的含氯消毒液

B.B.1000mg/L的含氯消毒液

C.C.2000mg/L的含氯消毒液

D.D.200mg/L的含氯消毒液

A.1000,10

B.990,10

C.980,20

D.500,10

A.500mg/L含氯消毒剂

B.1000mg/L含氯消毒剂

C.75%酒精

D.84消毒原液

A.终末消毒，含氯消毒液浓度是500mg/L

B.地面含氯消毒液浓度500mg/L，湿式清扫

C.枕套、床罩、被套一用一换，枕芯被褥用臭氧消毒机消毒

D.枕芯、被褥如有污染没关系，只要枕套、被套干净就可以

E.整个床单位均需要擦拭消毒

A.5ml

B.11ml

C.33ml

D.42ml

A.A.12.5ml

B.B.20ml

C.C.50ml

D.D.40ml

A.250mg/L

B.2500mg/L

C.500mg/L

D.1000mg/L

A.0.05%

B.0.1%

C.0.5%

D.1%

A.500ml/L

B.1000ml/L

C.1500ml/L

D.2000ml/L

A.500-1000mg/L含氯消毒液

B.95%的酒精消毒液

C.1000-2000mg/L含氯消毒液

D.2000-3000mg/L含氯消毒液

E.2.5-5%碘酒消毒液