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By Carol Pearson Washington 16 April 2007 Watch Diabetes report Type 1 diabetes can affect anyone but it usually starts in people younger than 30. It is a lifelong disease, and there is no cure. But doctors recently tested a stem cell therapy that a
发表于:2019-01-09 / 阅读(116) / 评论(0)
2007年VOA标准英语（四月）
2007年VOA标准英语（四月）