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标题: TTGWD6-40 [打印本页]

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作者: yinhang_1217    时间: 2009-9-8 20:29
标题: TTGWD6-40

Which of the following most logically completes the argument given?

 

People in isolated rain-forest communities tend to live on a largely vegetarian diet, and they eat little salt.  Few of them suffer from high blood pressure, and their blood pressure does not tend to increase with age, as is common in industrialized countries.  Such people often do develop high blood pressure when they move to cities and adopt high-salt diets.  Though suggestive, these facts do not establish salt as the culprit in high blood pressure, however, because ________.

 

1. genetic factors could account for the lack of increase of blood pressure with age among such people
2. people eating high-salt diets and living from birth in cities in industrialized societies generally have a tendency to have high blood pressure
3. it is possible to have a low-salt diet while living in a city in an industrialized country
4. there are changes in other aspects of diet when such people move to the city
5. salt is a necessity for human life, and death can occur when the body loses too much salt

答案是D，同样没太明白，请求点播。

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作者: overthere33    时间: 2009-9-9 13:56

吃盐少，血压低，搬到城里吃盐多，血压就高了，但是不能说盐就是血压高的罪魁，因为。。。。。

D说 还有其他方面的饮食原因

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