一道非常典型的而且已经流行了很多年的分数应用题,因为该题的解法非常独特新颖,各种教辅资料都把它作为经典题型进行重点分析,年年都能从学生的刊物上看到它的身影;又因为这道题解法之“妙”,所以它已经产生了许多新的“变种”;每年毕业班的老师们都会向学生津津乐道于该种题? A very typical and has been popular for many years of scores application questions, because the problem is very unique and unique solution, a variety of supplementary materials as the focus of its analysis of the classic questions, every year from the student publications To its shadow; and because of this problem solution “wonderful”, so it has produced a lot of new “variants”; every year the graduating class teachers are reassuring to the students on the kind of problem?