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Newsweek(Apr.5,2004)《新闻周刊》"糟糕的科学"Science has made greatstrides in recent years—and fu-eled mighty debates.In the U-nited States,politicians deck/stem-cell research;in Europe,they fear genetically modifiedfoods.The differing definitions of what’s natural and what’s not are starting to distortresearch around the world.近年来,科学已经取得很大的进展,并且引发了激烈的争论。在美国,政治家们谴责对干细胞的研究;在欧洲,他们畏惧转基因食品。对于什么是天然的,什么不是天然的不同定义,使世界各地的研究工作受到困扰。