非常困惑的一道逻辑题，求解答

nicetao

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 __________________
(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



我选的E，虽然觉得D没有问题，但我想不明白E为什么错呀
E：题目说人们吃了高盐才会导致高血压，不能就认为盐就是高血压的罪魁祸首因为盐是身体必须的。
不能说高盐量不好就是盐的责任了吧？
感觉E没问题呢。。。感觉进入死路了
求NN解答

candycan123

盐是必须的但是也不影响他是高血压的罪魁祸首，因为吃多了所以可能会对高血压有影响。这道题是解释之前的逻辑漏洞，就是他们搬进城市，含盐量的变化不是他们唯一的饮食变化，有点像实验里的控制变量，这个才是主要问题，我没懂你的脑回路不知道我这样说你懂没。。就是GMAT可能有的选项填进去貌似合理但是他跟argument没关系，个人见解~

ly1nn

本逻辑渣来试试
其实 这个E我是最先秒杀的
因为 E说 盐对人很重要，没有盐人会死，但是你看前面的句子是说  盐不能作为导致高血压的东西， 因为 ………… 放进解释进局子里：
盐不能作为导致高血压的物质，因为盐对人类身体很重要，没有盐甚至会死。
有没有觉得上下文并无任何逻辑关联

nicetao

ly1nn 发表于 2017-7-14 15:46
本逻辑渣来试试
其实 这个E我是最先秒杀的
因为 E说 盐对人很重要，没有盐人会死，但是你看前面的句子是说  ...

懂了，，，昨天脑回路转不过来。。。是无关选项

ly1nn

nicetao 发表于 2017-7-15 11:28
懂了，，，昨天脑回路转不过来。。。是无关选项

哈哈 逻辑渣还能帮到人 对得起自己了