用碘伏对细菌繁殖体污染物品的消毒的浓度和时间分别是

---

问题: 用碘伏对细菌繁殖体污染物品的消毒的浓度和时间分别是

A: 250mg/L,20min

B:50mg/L,40min

C:500mg/L,30min

D:200mg/L,15min