龟兔赛跑图片

http://i2.sinaimg.cn/edu/gaokao/2009-01-03/U2441P352T1D181794F19DT20090204175106.jpg

http://img.blog.163.com/photo/e45R8JDyvcW3XKsOupsC9g==/5629499534213297211.jpg