俗话说,方法是个宝,磨工不可少.要想学习好,时间必须有保证,但方法尤为重要.动态平衡问题一直是高考热点,也是学生学习的难点,对该类问题可用解析法,也可用图解法。本文主要谈谈巧用图解法突破动态平衡的几类问题. As the saying goes, the method is a treasure, mill work is essential. To learn, time must be guaranteed, but the method is particularly important. Dynamic balance has always been a hot college entrance examination is also difficult for students to learn, analytical methods available for such problems, but also Available graphical method. This article mainly talks about the clever use of graphic method to break through the dynamic balance of several types of problems.