课堂上,教授从讲义夹中取出一张白纸,问大家:“这张纸有几种命运?”学生们一时愣住了,没想到教授居然会问这么奇怪的问题,一时没有人回答。教授把纸扔到地上,又当着大家的面在纸上踩了几脚,纸上立刻就沾满了灰垢,教授又问:“这张纸有几种命运?”“这张纸现在变成废纸了。”有学 In class, the professor took a piece of white paper from the handbook and asked everyone: “There are several fates for this piece of paper?” The students were stunned for a moment and did not expect the professor to ask such a strange question, Reply. The professor threw the paper on the ground and stumbled a few feet on the paper in front of everyone. The paper was immediately covered with gray scale. The professor also asked: “There are several fates for this piece of paper? The paper has now become waste paper. ”Learning