《中小学数学》初中版2010第1-2期《由制作油条所想到的数学问题》一文介绍和评析了2009年浙江省绍兴市中考填空题第16题,并做了拓展,其中拓展2如下:小敏在看兰州拉面制作中受到启发,设计了一个数学问题:如图1,在数轴上截取从原点到1的对应点的线段AB,对折后使点B与点A重合(往左对折),再沿两端均匀地拉成1个单位长度的线段,这一过程称为一次操作(如在第一次操作后,原线段AB上的0变 “Elementary and middle school mathematics” junior high school edition 2010 first 1-2 “by the making of fried dough think of the math problem” one article introduced and evaluated 2009 shaoxing city zhejiang province fill vacancy question 16, and made the expansion, which expand 2 as follows : Xiao Min Inspired to see Lanzhou ramen production, a mathematical problem has been devised: As shown in Fig. 1, the line segment AB of the corresponding point from the origin to 1 is intercepted on a number axis, and the point B is folded to the point A ), And then pulled evenly along both ends of a unit length of the line, this process is called an operation (such as in the first operation, the original line AB 0