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Lesson 17 A man-made disease 人为的疾病 First listen and then answer the following question. 听录音，然后回答以下问题。 What factor helped to spread the disease of myxomatosis? In the early days of the settlement of Australia, enterp
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By Nancy Steinbach Broadcast: July 30, 2003 This is Bill White with the VOA Special English Health Report. A medical study says foods rich in a kind of fat may help prevent Alzheimer's disease. Alzhei
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By Carol Pearson Washington 24 April 2008 The United Nations observes World Malaria Day April 25th in support of international efforts to eliminate the disease. Organizations involved in that battle say the tide is turning in their favor. VOA's Mil A
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By Melinda Smith Washington, DC 10 July 2006 watch Health report Ken Lay The sudden death this past week of former Enron Chairman Kenneth Lay has focused attention on the link between stress and heart disease. Kenneth Lay died Wednesday of an appare
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