單項(xiàng)選擇題

【A1/A2型題】欲配制1%過氧乙酸1000ml,需要20%的過氧乙酸原液和滅菌蒸餾水的ml數(shù)分別為()

A.50ml,950ml
B.100ml,900ml
C.150ml,850ml
D.200ml,800ml
E.250ml,750ml

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