Which of the following most logically completes the argument given below?
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_____.
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 ________. A. genetic factors could account for the lack of increase of blood pressure with age among such people B. people eating high-salt diets and living from birth in cities in industrialized societies generally have a tendency to have high blood pressure C. it is possible to have a low-salt diet while living in a city in an industrialized country D. there are changes in other aspects of diet when such people move to the city E. salt is a necessity for human life, and death can occur when the body loses too much salt
Both in rain forest and in industrial countries, if people eat low-salt diets, they do not suffer from high blood pressure; and people's blood pressure does not tend to increase with age. This 现象 is the same in rain forest as in industrial countries.
But when these rain forester people move to the cities and eat high-salt diets, they often has high blood pressure.
However, these facts do not establish salt as the culprit in high blood pressure (main conclusion), because ______________
我觉得“现象”,也就是题目说is common 的东西,最多指high blood pressure, 而不是if people eat low-salt diets, they do not suffer from high blood pressure
首先as 管不了这么远(说salt和diet的事情是在另外一句话) 其次if people eat low-salt diets, they do not suffer from high blood pressure在工业化国家,不见得会COMMON吧(正如答案说的,在工业化国家的人会受其他因素影响)
最重要的是,作者明显是要突出热带玉林跟工业化国家的不同之处,再引出“同样的人,在不同的地方,表现出行为和健康的差别”这样的”对比实验“ 如果你真的认为if people eat low-salt diets, they do not suffer from high blood pressure这个事情在热带雨林和工业化国家都一样的话。那作者这段话的思路挺糟糕的,逻辑不连贯,而且有自打嘴巴之嫌
That people suffer from high blood pressure and that their blood pressure tends to increase with age are(虽然原句用的是is) common in industrialized countries.