三个数值按大小顺序排列的问题,涉及到实数、函数、不等式等方面的知识。其中有的问题,要有扎实的基础、灵活的方法和某些技巧,才能顺利地解答,其对考查学生掌握有关的数学知识及运用能力的作用、不可忽视。这类问题屡次出现在高考试卷中,活跃在 The question of the arrangement of three numerical values ​​in order of magnitude involves knowledge of real numbers, functions, inequalities, and so on. Some of these problems must have a solid foundation, flexible methods, and some techniques in order to successfully answer questions. Their role in examining students’ knowledge of related mathematics and their ability to use can not be ignored. This type of problem has repeatedly appeared in the high test volume and is active in