2017年卫生职称英语考试每日一练：补全短文（11月28日）
2016-11-28 12:04 来源：医学教育网
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补全短文
A new study has found no evidence that sunscreen， commonly used to reduce the risk of skin cancer， actually increase the risk.
Researchers from the University of Iowa based their findings on a review of 18 earlier studies that looked at the association between sunscreen use and melanoma （黑素瘤）。 They said that they found flaws in studies that had reported associations between sunscreen use and higher risk of melanoma.
The word “flaws” in the 2nd paragraph most probably means _______.
A.evidence
B.facts
C.faults
D.failures
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