The word "mixed" in the first paragraph means "______".A．both good and badB．put togetherC．
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The word "mixed" in the first paragraph means "______".
A．both good and bad
B．put together
C．both sharp and soft
D．confused
请帮忙给出正确答案和分析，谢谢！
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正确答案：A
由题干定位到第一段的内容。NealFreedman承认说研究结果havereallybeenmixed，接着说道：There"sbeensomeevidencethatcoffeemightincreasetheriskofcertaindiseasesandthere"salsobeenmaybemorerecentevidencethatcoffeemayprotectagainstotherdiseasesaswell．可知．研究证据显示了两种不同结论：咖啡会增加人患某些疾病的风险，同时咖啡又能预防另一些疾病。所以A为答案。