gwd-4-8

sinorachel

Q8:

From 1980 to 1989, total consumption of fish in the country of Jurania increased by 4.5 percent, and total consumption of poultry products there increased by 9.0 percent.  During the same period, the population of Jurania increased by 6 percent, in part due to immigration to Jurania from other countries in the region.

If the statements above are true, which of the following must also be true on the basis of them?

1. During the 1980’s in Jurania, profits of wholesale distributors of poultry products increased at a greater rate than did profits of wholesale distributors of fish.
   
2. For people who immigrated to Jurania during the 1980’s, fish was less likely to be a major part of their diet than was poultry.
   
3. In 1989 Juranians consumed twice as much poultry as fish.
   
4. For a significant proportion of Jurania’s population, both fish and poultry products were a regular part of their diet during the 1980’s.
   
5. Per capita consumption of fish in Jurania was lower in 1989 than in 1980.

答案是E，可是我怎末觉得B也正确呢

从题中看出人口增长6%，而鱼消费量增长4。5%，禽消费量增长9%，便可以知道增加的这些人中鱼消费小于禽消费，由此可得B选项阿

哪位给解释解释？谢谢

sinorachel

up

mildsevens

B是无关的，题目中根本就没有提immigration的问题，也没有说人们选择食物的时候会根据消费量来决定，与本题无关。

hitler999

以下是引用mildsevens在2005-4-19 12:27:00的发言：
B是无关的，题目中根本就没有提immigration的问题，也没有说人们选择食物的时候会根据消费量来决定，与本题无关。

题中提到了immigration，但B仍是错误的，可以想这样一个问题，如果immigration中更多的人喜欢poutry，即使100％，那89年poutry消费的增加量应该是6％，但题干中给的是9％，所以，并不能推出B的结论。

[此贴子已经被作者于2005-4-19 22:21:35编辑过]

龙飞凤舞

无法从题中得出：本地人对鱼消费的变化，这个量不定，B就无法得出