扫描二维码，直接登录
题库 / Prep2007E1-CR-14
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?
Smokers are less likely than nonsmokers to have diets that are rich in vitamins and minerals.
The lung function of smokers whose diets are rich in those vitamins and minerals is generally better than that of nonsmokers with comparable diets.
People whose diets are deficient in those vitamins and minerals do not typically have other health problems in addition to diminished lung function.
Stopping smoking will not typically improve lung function more than any diet changes can.
Smoking does not introduce into the body chemicals that prevent the helpful vitamins and minerals from entering the bloodstream.
比较对象时，吃这样食物的smokers和不吃这样食物的smokers
所以，stopping smoking 将两个比较对象都否定了。
所以D不对
搭桥（取反最好了啦）
A、吸烟者习惯比不吸烟的吃V和M少，个人习惯与题目中链条无关
B、同样吃V和M，吸烟者比不吸烟的肺功能好，变量是吸烟与否，WRONG
C、不喜欢吃V和M的人（注意是人！！！）没有其他损耗肺功能的坏习惯，他因削弱
D、对肺，戒烟的效果不比改善饮食好到哪儿去，与V和M无关
E、吸烟不会导致对V和M吸收困难，CORRECT！！！！取反就更明显啦！！！
方案模式，否定了否定性副作用登录 或 注册 后可以参加讨论
E.吸烟不会阻止（吃进的）营养食物进入人体bloodstream。 （呼应第一句：bloodstream里营养level越高，lung function 就越好；吸烟的人想要好的lung function, 多补充营养）
E取非后，smoking会影响维他命和矿物质吸收，削弱了结论，则原结论是加强
A和E相比，E更直接，更优
题目里说的是certain vitamin and minrtal，a是 vitamins&minerals ，比较对象不同
d取非之后：戒烟能比饮食更好的提高肺功能。不能weaken结论
D：否定后得出一种可以提高肺功能的方法，但是原题的结论是多吃V和M是一种有效方法，没说是唯一的，所以不妨碍结论正确性。
d取非之后：戒烟能比饮食更好的提高肺功能。不能weaken结论
前提：higher level的维他命和矿物质在血管里会，better的肺功能
结论：吸烟的人（肺功能不好），通过多吃含有维他命的食物，就可以提高肺功能
gap：找到吸烟者和不吸烟者之间的区别，会不会吸烟的人体内有一些物质会抵消补充的维他命
答案E取非后为吸烟会影响V和M的吸收，所以吃有V和M食物并不能提高LUNG FUNCTION
答案E取非后为吸烟会影响V和M的吸收，所以吃有V和M食物并不能提高LUNG FUNCTION
B取反后加强：吃维生素的吸烟者肺功能没有不吸烟的人好
C 取反后无关：饮食中缺卫生司的人除了肺功能还有其他的问题
D削弱
E正确
C: Increase intake on vitamin will improve lung function. P: high level correlates with better lung function.
CQ1: did these two have relevance?
CQ2: third factor exists? E: that is it! whether 3rd factor exist.
吸烟者intake of foods that are rich in these helpful vitamins and minerals为了improve lung function
食物里vitamin&minerals和血液里的vitamin&minerals有gap，选项应把gap补全，所以选e