绒毛变性

There is a big headline tonight about modern health.Forty-three million people are taking some kind of aspirin everyday to prevent heart attacks and strokes,but now the leading medical journal JAMA says there is evidence that daily aspirin could be l

发表于:2019-01-01 / 阅读(37) / 评论(0) 分类 访谈录2013年

By Melinda Smith Washington 10 July 2007 A recent study in the Journal of the American Medical Association shows that older people who carry certain genes are more susceptible to a loss of their central vision. That loss of sight is an advanced form

发表于:2019-01-09 / 阅读(105) / 评论(0) 分类 2007年VOA标准英语(七月)

HEALTH REPORT - Progression of Age-Related Macular Degeneration By Nancy Steinbach Broadcast: Wednesday, January 28, 2004 This is Phoebe Zimmermann with the VOA Special English Health Report. American

发表于:2019-01-30 / 阅读(83) / 评论(0) 分类 健康与经济

By Robert Berger Jerusalem 02 November 2007 The Palestinian Authority has taken a step toward resuming security control in the volatile West Bank. As Robert Berger reports from VOA's Jerusalem bureau, the move comes ahead of another round of high-lev

发表于:2019-01-31 / 阅读(65) / 评论(0) 分类 VOA常速英语2007年(十一月)

Idiom: Run before you can walk( be patient ) Hit the book: Retinal detachment Macular degeneration Cataract Light sensitivity Blurry Side effect Randomly Respectively Optical And high myopiawhere the eyeball stretches and becomes too longisn't just

发表于:2019-02-16 / 阅读(102) / 评论(0) 分类 趣味青春英语

Moderator : Ladies and Gentlemen: The President of the United States, Ronald Reagan. President Reagan : Thank you. Thank you very much. Thank you very much. Thank you very much. Thank you very much. And , Reverend Clergy all, Senator Hawkins, distin

发表于:2019-03-16 / 阅读(522) / 评论(0) 分类 名人演讲