单项选择题

A.含氯消毒剂500mg/L~1000mg/L浸泡消毒30min~45min
B.含氯消毒剂500mg/L~1000mg/L浸泡消毒25min~30min
C.含氯消毒剂1000mg/L~2000mg/L浸泡消毒30min~45min
D.含氯消毒剂1000mg/L~2000mg/L浸泡消毒25min~30min