题目

You really can't(发表评论) till you know the facts. 答案：【1】comment25℃时pH＝13的强碱与pH＝2的强酸溶液混合，所得混合液的pH＝11，则强碱与强酸的体积比为：A.9∶1B.1∶11C.1∶9D.11∶1