这一题真是头疼呀，求NN解释，这种事情怎么可能呀？

meiyw

The country of Baurisia has, until now, been self-sufficient in both grain and meat.However, with growing prosperity in Baurisia has come a steadily increasing per capita consumption of meat, and it takes several pounds of grain to produce one pound of meat.Therefore, since per capita income in Baurisia is almost certain to rise further but increases in domestic grain production are highly unlikely, Baurisia is soon likely to become an importer of grain.
Which of the following, if true, most seriously weakens the argument?
A. When people increase their consumption of meat, they also tend to increase their consumption of grain.

B. The per capita consumption of meat in Baurisia is roughly the same across all income levels.

C. Per capita consumption of meat has not increased substantially in recent years in those countries from which Baurisia is likely to import meat.

D. It is more economical for Baurisians to import meat than grain.

E. During Baurisia's years of growing prosperity, the country's population has remained relatively stable.


答案为D
since后面说了个人均收入要增加，按照helr，也算是因呀，B选项说肉的人均消耗跟收入水平没有关系， 这么看看，也没有让因不错误，也不会导致其他果。。呵呵，那就是干扰项？？


另外，是不是我理解错误，meat怎么能用grain去生产，这不是能拿诺贝尔奖了？？

Vanilla_MY

能说没太看懂你想问什么么。。。

此外，关于 “meat怎么能用grain去生产” 题目告诉你能生产就能生产呗 管那么多干嘛 我们做题又不是搞科学研究

nana2012two

Baurisia has come a steadily increasing per capita consumption of meat, and it 。。。。。it指代前面说的人均消费meat稳定增加。 消费几磅grain才能产出和消费一磅meat一样的水平 这样B就不合理了

Bradz

你不知道很多我们吃的肉类，比如午餐肉，大部分是淀粉么？

meiyw

Bradz 发表于 2016-11-17 09:14
你不知道很多我们吃的肉类，比如午餐肉，大部分是淀粉么？

我不知道。哈哈。可能还有狮子头

windowshade

你说：B国常年自己自足，但是突然平均饭量大增，原来我养2头猪，现在要养10头，大肥猪吃的猪粮都不够了，这尼玛只能进口猪粮了。我说：扯淡，敢不敢直接进口大肥猪！

meiyw

windowshade 发表于 2016-11-21 06:04
你说：B国常年自己自足，但是突然平均饭量大增，原来我养2头猪，现在要养10头，大肥猪吃的猪粮都不够了，这 ...

有道理呀，我两分钟就是想不出来这么多东西。