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“我们的回顾性研究表明,青少年吸入二手烟会影响他们的考试成绩。”Bradley Collins博士说。他是Tem-ple大学健康行为研究中心主任,本项研究的课题组组
“Our retrospective study shows that adolescents taking secondhand smoke can affect their test scores,” said Dr. Bradley Collins. He is director of Tem-ple University Health Behavior Research Center, the research group