VOA常速英语2008年-US Study Estimates One in Four Teenage Girls Ha
时间：2019-01-30 作者：英语课 分类：VOA标准英语2008年（三月）
英语课
By Melinda Smith
Washington
14 March 2008
Washington
14 March 2008
The U.S. Centers for Disease Control and Prevention this week released a study estimating that one out of every four teenage girls in the United States is infected with a sexually transmitted disease. The rate is even higher among African-American girls. VOA's Melinda Smith has details of the study, as well as reaction.