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一瓶浓度为80%的酒精溶液倒出1/3后再加满水，再倒出1/4
【混合溶液题型精讲】例6：一瓶浓度为 80%的酒精溶液倒出1/3后再加满水，再倒出1/4后仍用水加满，再倒出1/5后还用水加满，这时瓶中溶液的酒精浓度是（ ） A.50% B.30% C.35% D.32%
行测数学运算混合溶液问题专项视频合集10/28
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