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VOA慢速英语 2007 1127b

VOICE ONE : This is SCIENCE IN THE NEWS, in VOA Special English. I'm Bob Doughty. VOICE TWO: And I'm Faith Lapidus. This week, the stories of some medical heroes. (MUSIC) VOICE ONE: At the start of the twentieth century, the United States Army had a

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VOA慢速英语2011--Six Researchers Who Gave All to Their Wo

Six Researchers Who Gave All to Their Work BOB DOUGHTY: This is SCIENCE IN THE NEWS, in VOA Special English. Im Bob Doughty. FAITH LAPIDUS: And Im Faith Lapidus. This week, the stories of some medical heroes. (MUSIC) BOB DOUGHTY: At the start of the

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By Phuong Tran Dakar 13 December 2006 Representatives from eight Central and West African countries are meeting in Mali this week for training on preventing yellow fever. This highly contagious disease, which had been virtually eliminated in the 195

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BOB DOUGHTY: This is SCIENCE IN THE NEWS, in VOA Special English. I'm Bob Doughty. FAITH LAPIDUS: And I'm Faith Lapidus. This week, the stories of some medical heroes. (MUSIC) BOB DOUGHTY: At the start of the twentieth century, the United States Army

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New Yellow Fever Vaccine Shows Promise A new vaccine for yellow fever is showing good results in tests as it overcomes one of the biggest problems with the current version. Yellow fever is a deadly disease that occurs in much of South America and sub

发表于:2019-01-14 / 阅读(52) / 评论(0)

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beautify the environment

bell heathers

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