标题: 老prep逻辑题，求指教啊求指教 [打印本页] 作者: 姜欧恩 时间: 2018-12-24 13:27 标题: 老prep逻辑题，求指教啊求指教 The higher the level of certain vitamins and minerals in the bloodstream, the better a person's lung function, as measured by the amount of air the person can expel in one second. The lung function of smokers is significantly worse, on average, than that of nonsmokers. Clearly, therefore, one way for smokers to improve their lung function is for them to increase their intake of foods that are rich in these helpful vitamins and minerals.
Which of the following is an assumption on which this argument depends?
a. Smokers are less likely than nonsmokers to have diets that are rich in vitamins and minerals
b.The lung function of smokers whose diets are rich in those vitamins and minerals is generally better than that of nonsmokers with comparable diets.
c. People whose diets are deficient in those vitamins and minerals do not typically have other health problems in addition to diminished lung function.
d. Stopping smoking will not typically improve lung function more than any diet changes can.
e.Smoking does not introduce into the body chemicals that prevent the helpful vitamins and minerals from entering the bloodstream.
我做assumptiontimid方法是选取非后削弱题目结论的选项，d选项取非后“Stopping smoking will typically improve lung function more than any diet changes can.”就是说戒烟可以比改变饮食更好地提高肺功能，不算是他因削弱吗；还是说不选d是因为文章中没有提到戒烟，到底什么时候该选包含文章中没有提到的内容的选项什么时候不该选呢……感觉好晕