主题语境:人与社会—运动本文是应用文。介绍在古代西安流行的几种运动
21.A细节理解题。根据第二段的最后一句话 Later, cuju was commonly played in thearmy for military training purposes, during the han dynasty(202 BC- 220 AD)aH
22.D细节理解题。根据第四段的第一句话 Jiju is a sport which uses a stick to hit ballswhile riding on a horse, pretty similar to modem polo可知。