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?
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?
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.
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.
In 1989 Juranians consumed twice as much poultry as fish.
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.
答案是E 怎么感觉Per capita consumption of fish 也推不出来啊,只说了总量增长了多少
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?
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.
和profit无关
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.
并未说明移民数,不能推出
In 1989 Juranians consumed twice as much poultry as fish.
不是1989,是总增长。此外增长是2倍不能代表消耗两倍
For a significant proportion of Jurania's population, both fish and poultry products were a regular part of their diet during the 1980's.
无关
Per capita consumption of fish in Jurania was lower in 1989 than in 1980. 是说人均对鱼的消耗下降。正确。 我们可以通过数学算式推出:设原消耗鱼的总量是a,人口为b。则1989年消耗鱼的总量为1.045a,人口为1.06b.
由于1.045a/1.06b<a/b.因此人均消耗鱼下降
答案是E 怎么感觉Per capita consumption of fish 也推不出来啊,只说了总量增长了多少