周一就要考了，一个逻辑狗求助！

zhipei

老年痴呆症
考古

V1 (730) 说有个国家Nation X的alzheimer's （老年痴呆症）的人很少。先说了一点背景知识就是说老年痴呆症如果不是在early middle age得的话那就是一般都是75所以后才得。然后说研究发现这个nation X吃的一种东西里面有个啥物质说这个物质是可以防止老年痴呆症。然后结论就是说就是因为这个物质所以nation x的这个病的人少。削弱。
选项：1 Many other nation's life expectancy is much longer than that of Nation X
2.说的是科学家发现这个nation X里面的那个物质只对bacteria有用但是老年痴呆症不是bacteria
3.说的是nation x的邻国都没有老年痴呆
后面两个选项记不清楚了，但是我选的是A.（狗狗主人答案）

这个选项1貌似和题目没关系啊，人题目只不过是说得这种病又没说活的短？？是不是选2呀？

ViolaT4ever5

同意楼主，我也觉得2对

lethe0923

我也觉得是2。。。。之前想问来着，
但是又觉得题目都说过是可以防止老年痴呆了，是不是不能这么直接反对啊
而选一的话 好像又可以理解为，其他国家的寿命长，所以大于75的多，然后就更多的人得老年痴呆了，所以是他因？
我觉得两个都有点奇怪- -。。。求NN解答

sdcar2010

There is one piece of information you need to recognize from this stimulus: 老年痴呆症如果不是在early middle age得的话那就是一般都是75岁以后才得

Now let's look at the answer choice 1) Many other nation's life expectancy is much longer than that of Nation X.

If this is true, then one reason why country X has fewer cases of Alzheimer's disease could be that the people living in country X never make it to the age of 75 (to display the symptom of Alzheimer's diesease).  Then the conclusion that the food ingredient prevents Alzheimer's won't hold!

sdcar2010

科学家发现这个nation X里面的那个物质只对bacteria有用但是老年痴呆症不是bacteria

This information cannot rule out the possibility that the special food ingredient still works on the Alzheimer's based on a mechanism other than killing bacteria, since we do not know the cause of the Alzheimer's and we do not know which biological target is for the special food ingredient.

dumdumface

选1...

zhipei

There are one pieces of information you need to recognize from this stimulus: 老年痴呆症如果不是在early middle age得的话那就是一般都是75岁以后才得

Now let's look at the answer choice 1) Many other nation's life expectancy is much longer than that of Nation X.

If this is true, then one reason why country X has fewer cases of Alzheimer's disease could be that the people living in country X never make it to the age of 75 (to display the symptom of Alzheimer's diesease).  Then the conclusion that the food ingredient prevents Alzheimer's won't hold!

-- by 会员 sdcar2010 (2010/11/7 1:39:06)

It does make sense, thanks!!

ananyolanda

哈哈 懂了~