对于液体中的物体由于某种变化而引起的液面升降问题,经常困惑着学生.考虑到这类问题在各种考试中多以填空、选择题的形式出现,本文介绍一种简便快捷的判断方法——“状态法”.一、什么叫状态法所谓“状态法”,就是对变化前后液体中的物体所处的状态进行比较来判断液面的升降. For liquid level objects due to a certain change caused by the liquid level rise and fall, often confused students. Taking into account this type of problem in a variety of exams to fill in the blank, multiple choice form, this article describes a simple and quick judgment Method - “state method.” First, what is the state law The so-called “state method” is to compare the state of the object in the liquid before and after the change to determine the level of the liquid level.