一、一个争论多年的问题——“敲花盆”日常生活中,有经验的人在挑选花盆之类的生活用品时,为了判断它是否有裂缝,往往要用手或借助于其他物体轻敲一下所选物品,用耳听一下此时发出的声音,人们便可判断它是否有裂缝了.这一生活常识大家都知道,其中关键的问题是:既然是根据声音来判断它是否有裂缝,那么人们 First, a matter of controversy for many years - “Knocking flower pot ” In daily life, experienced people in the selection of flower pots and other daily necessities, in order to determine whether it has cracks, often by hand or by means of other The object tapping on the selected item, with the ear listening to the sound made at this time, people can determine whether it has cracks in. This common sense we all know, of which the key question is: Since it is based on the sound to determine whether it Cracks, then people