有一瓶酒精溶液,浓度为60%,加入一定量的水之后,浓度变为48%,如果再加入同样多的水,浓度会变为多少?(假设不会溢出)
发布时间:2025-11-29
A.25%
B.30%
C.36%
D.40%
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