提高英语六级阅读水平，读书人网（www.reader8.net）编辑最新整理提供相关文章供您阅读参考，更多更全更新的教育考试类相关资料在这里，时刻关注我们，祝您成功！
【答案】
1. It was the city’s expanded testing and treatment of people with HIV.
2. Big city residents tend to have more stress, which can translate into skyrocketing blood pressure and increased rates of heart disease.
编辑推荐：
更多信息请关注读书人网(http://www.reader8.net/)