阅读理解(共 20 小题;每小题 2 分,满分 40分) 阅读下列短文,从每题所给的四个选项(A 、B、C和 D) 中,选出最佳选项。【广东省 2012 届高三考前冲刺卷(二)】 A In the past decade the popularity of rock climbing has greatly increased , and so has the number of has been estimated that rock climbing is now enjoyed by more than 9 million people in the US each findings revealed a 65 percent increase in the number of patients that were treated in US emergency departments for rock climbing - related injuries between 1991 and 2008. The study , published in the online issue of the American Journal of Preventive Medicine , found that about 40,000 patients were treated in US emergency departments for rock climbing - related injuries between 1991 and mon types of rock climbing - related injuries were fractures ( 骨折) and sprains ( 扭伤). The ankle was the mon body part to be injured (40 percent) . Climbers in the study ranged in age from 2 to 74, with an average age of study also found that women took upa quarter of the injuries. Falls were the primary reason for injury with over three - quarters of the injuries occurring as the result ofa severity of fall - related injuries had a lot to do with the height of the who were injured after falling from a height over 20 feet were 10 times more likely to be treated than patients who were injured falling from 20 feet or lower. “ We found that the climbers