The study of the effects of salt on high blood pressure was carried out ______. We can infer from the passage that ______.

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问题 The study of the effects of salt on high blood pressure was carried out ______.
We can infer from the passage that ______.

选项 A、when salt is added to their diets, rats and human beings act in the same way
B、the near future will see a cure for high blood pressure
C、the medical field is desperately in need of research
D、a tendency toward high blood pressure may be a genetic factor

答案D

解析 推断题。本文提到的研究主要结论足高血压病可归因于遗传基出。D项"患高血压病的倾向性届遗传因素"是合乎逻辑的推论。原文最后说的是鉴别可能患高血压病的人群,没说不久即有办法治愈该病,故B错;原文没说医学界急需开展研究,故C错。
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