The center shares its findings with firefighters, police, transportation departments and the military.They also share information with universities and transportation companies.The technology company Google uses the data for its traffic­related websites.Michael Pack says, the information is then shared with anyone who wants to help traffic run more smoothly.

　　Mr.Pack says the goal is to help develop an intelligent system of road signals that will communicate with each other and with vehicles on the road.

　　文章大意：本文是一篇说明文。介绍了马克里兰大学先进交通技术中心(CATT)的科学家和学生们使用模拟技术帮助政府和私营企业控制和应对不断变化的交通状况。

　　32．The second paragraph is written to ________.

　　A．attract more people to look through Forbes.com

　　B．tell readers what Forbes.com says on its website

　　C．show how much money controlling costs America

　　D．prove it is very expensive for some developed countries to control traffic

　　答案：D　写作意图题。根据第一段第一句Controlling traffic is a complex and high­cost problem in many developed countries.可知，第二段写出了美国控制交通的费用就是为了证明这句话。故选D项。

　　33．What benefit can emergency workers get from the system developed by the CATT lab?

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