單項選擇題

過氧乙酸消毒是將過氧乙酸稀釋成0.5%~1.0%水溶液,加熱蒸發(fā),在相對濕度,室溫下,過氧乙酸用量按1g/m3計算,熏蒸時間2h()。

A.40%~60%
B.50%~70%
C.60%~80%
D.70%~90%
E.80%~100%