GWD-4-8

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.

答案给的是C，偶觉得C明显错误，应该E

The answer is E

各位大俠,請幫我解釋一下題目好嗎?

我只看懂1.魚的消費量增加4.5%

             2.家禽的消費量增加9%

             3.人口增加6%

然後就不知道題目到底想考什麼了

问题是：如果原文的信息是对的，问你哪个选项必然对。

由你说的1，3条就可推出E。故E一定对。

假设原来人有n个现在是n*(1+6%)

原来消费鱼m条现在是m*(1+4.5%)

原来人均消费鱼m/n

现在人均消费鱼1.045m/1.06n

显然人均消费鱼少了

准确。

不错，解释的很好。顶

我选了B，

家禽消费量的增加超过人口增加的比例，鱼消费量的增加小于人口增加的比例，不正说明，新加入的人口的食物消费结构是家禽大于鱼的吗？

谁给解释一下我错在哪里好吗？