[解析]
(1)B.细节理解题.根据"According to a Swedish study in the journal of the American College of Cardiology that looked at more than 33,000 women,the more chocolate the women said they ate,the lower their risk of stroke."可知研究巧克力爱好者较少中风的研究人员来自瑞典.故选B.
(2)C.细节理解题.根据"While she believes chocolate has health benefits,she also warned that eating too much of it could be having the opposite of the desired effect."可知"你吃的巧克力越多,你就越健康"这种说法是错误的.故选C.
(3)A.细节理解题.根据"Among those with the highest weekly chocolate intake,more than 45 grams,there were 2.5 strokes per 1,000 women per year"可知"intake"意为"摄入、消耗量".故选A.
(4)D.推理判断题.根据"the observational design of the study,findings of this study cannot prove that it's chocolate that lowers the risk of stroke,said Susanna Larsson from Karolinska Institute in Stockholm,"可知吃巧克力是否能降低中风的风险还有待研究.故选D.
(5)B.推理判断题.根据"According to a Swedish study in the journal of the American College of Cardiology that looked at more than 33,000 women,the more chocolate the women said they ate,the lower their risk of stroke."可知这篇文章的主旨是巧克力爱好者可能会有更少的中风.故选B.