同学们都知道天平是物理学中比较精密的仪器．为确保测量精确，用天平每次所称的物体质量不能超过天平的最大秤量．也就是说，当）月秤量为。千克的天平称质量大于，n千克的物体时，称量次数应为2次，甚至更＃次．那么有无例外呢’！请看下树．例在一瓶子内装有小米，小米质量 The students all know that the balance is a relatively sophisticated instrument in physics. To ensure accurate measurements, the mass of the object used by the balance must not exceed the maximum capacity of the balance. In other words, when) the amount of monthly weighing is. When a kilogram of a weighing scale weighs more than n kg, the number of weighings should be 2 or even more. Is there any exception?' Look under the tree. In a bottle containing millet, millet quality