| 请教OG Diagnostic Test CR 33 题目： During the 1980s and 1990s, the annual number of people who visited the Sordellian Mountains increased continually, and many new ski resorts were built. Over the same period, however, the number of visitors to ski resorts who were caught in avalanches decreased, even though there was no reduction in the annual number of avalanches in the Sordellian Mountains. Which of the following, if true in the Sordellian Mountains during the 1980s and 1990s, most helps to explain the decrease? 选项： （E）Construction of new ski resorts often led to the clearing of wooded areas that had helped prevent avalanches. Page91的分析说： E This information points to an expected increase, rather than decrease, in visitors who might be caught by avalanches. 应该不需要关于雪崩的常识也能知道是选项E是increase而不是decrease，因为wooded areas 后面说明了多森林的地方可以防止雪崩，而clearing则没有树木所以就是会增加雪崩了。 以上的理解应该是正确的吧？谢谢！ | 
