标题: GWD-4-Q8 [打印本页] 作者: 哆嗦 时间: 2013-1-26 14:52 标题: GWD-4-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?
A.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.
B.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.
C.In 1989 Juranians consumed twice as much poultry as fish.
D.For a significant proportion of Jurania’s population, both fish and poultry products were a regular part of their diet during the 1980’s.
Per capita consumption of fish in Jurania was lower in 1989 than in 1980. 答案选A，我选的是D，求高人指点！！！作者: 哆嗦 时间: 2013-1-26 14:54
写错了，蓝色字体是E，我选的是E作者: miamiadi333 时间: 2013-1-27 05:01
lz,答案是什么？？答案是e吧。。。怎么可能是a呢？你看错了吧。。。 原文：鱼的销量增加了4.5%,家禽销量增加9%，人口数量增加6%。 a,明显是错误答案，原文信息就那么多，a中说的是批发商的利润问题，肯定是无关的，因为原为没有任何信息涉及到利润问题。比如说，鱼的成本低于家禽的成本3倍，那么即使家禽卖的比鱼多，利润还是比鱼低啊。。。。作者: 哆嗦 时间: 2013-1-27 16:01
谢谢解答！！！作者: ydqsbfs 时间: 2015-7-2 13:33
Take the population to be 100
Fish - 100
and
Poultry consumption also as 100
So after Increase
Population in 1989 - 106
Fish- 104.5
and
poultry 109
So per capita for fish consumption in 1980 was 100/100 = 1
in
1989 it becomes 104.5/106 <1
So fish consumption decreases. 作者: marjohn 时间: 2016-7-7 22:54
感谢分享！