朋友,你也许觉得我这个问题问得怪,雪化了以后当然是……请不要着急回答,先听我说。在一个报告会上,有位学者让大家从圆等四个图形中选出一个与众不同的。结果四种图形都被选了出来,而且都是对的。由于标准和角度不同,得出的答案自然不同。世界是千变万化的,疑问是层出不穷的, Friend, you may think I asked this strange question, of course after the snow is ... ... please do not hurry to answer, listen to me first. At a conference, a scholar asked everyone to select one out of four graphics. The results of the four kinds of graphics have been selected, and are right. Due to the different standards and perspectives, the answer is naturally different. The world is ever-changing, the questions are endless,