新学期开始了,有理数们正忙着在数轴上集合站队,忽然,0被谁撞了一下,扭头一看:“你是谁,我怎么不认识你?”“我叫2~(1/2),是新来的。”0还想问下去,却听老师说:“随着知识的增加,原来的有理数不能满 The new semester began, and the rational numbers were busy assembling the team on the number of axes. Suddenly, 0 was hit by someone and turned to see: ”Who are you, how do I not know you?“ ”My name is 2~(" 1/2) is a new arrival.” “Oh, I would like to ask, but I listened to my teacher:” With the increase of knowledge, the original rational numbers cannot be full.