How does acid deposition affect human health? We eat food, drink water, and breathe air that has come in contact with acid deposition. Canadian and U.S. studies indicate that there is a link between t

发表于:2019-01-02 / 阅读(180) / 评论(0) 分类 知性英语

HEALTH REPORT - October 23, 2002: Folic Acid Reduces Fetal Deaths By Nancy Steinbach This is the VOA Special English Health Report. A new study in Sweden has confirmed another important health effect

发表于:2019-01-04 / 阅读(56) / 评论(0) 分类 健康与环境

Welcome to THE MAKING OF A NATION -- American history in VOA Special English. Millard Fillmore In eighteen fifty, President Zachary Taylor died after serving about a year and a half in office. Taylor's vice president, Millard Fillmore, took his plac

发表于:2019-01-11 / 阅读(27) / 评论(0) 分类 VOA慢速英语2009年(四)月

US Postal Service Unveils Music Icon Stamp Series The first issue in the Music Icon series honored Lydia Mendoza, a pioneer of Tejano music, the style that comes from the Texas-Mexico border area. Lydia Mendoza was 18 years old when she walked into a

发表于:2019-01-14 / 阅读(36) / 评论(0) 分类 VOA标准英语2013年(六月)

Folic Acid Supplements Shown To Reduce Risk Of Autism Green, leafy vegetables, fruits and nuts naturally contain folate, a B vitamin that helps the body make healthy new cells. Most pre-natal vitamins include folic acid because it protects against de

发表于:2019-01-14 / 阅读(62) / 评论(0) 分类 VOA标准英语2013年(四月)

By Melinda Smith Washington, D.C. 07 June 2007 For years, doctors urged women to take folic acid if they planned to get pregnant. Then researchers discovered the nutrient helped reduce the risk of a heart attack. But now a new study shows folic acid

发表于:2019-01-16 / 阅读(101) / 评论(0) 分类 2007年VOA标准英语(六月)