单项选择题

A.用含有效氯250mg/L的消毒剂浸泡消毒30min
B.用含有效氯500mg/L的消毒剂浸泡消毒30min
C.用含有效氯1000mg/L的消毒剂浸泡消毒30min
D.用0.1%过氧乙酸溶液浸泡消毒30min
E.用0.2%过氧乙酸溶液浸泡消毒30min