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题库 / Prep2007E1-CR-19
Gortland has long been narrowly self-sufficient in both grain and meat. However, as per capita income in Gortland has risen toward the world average, per capita consumption of meat has also risen toward the world average, and it takes several pounds of grain to produce one pound of meat. Therefore, since per capita income continues to rise, whereas domestic grain production will not increase, Gortland will soon have to import either grain or meat or both.
Which of the following is an assumption on which the argument depends?
The total acreage devoted to grain production in Gortland will soon decrease.
Importing either grain or meat will not result in a significantly higher percentage of Gortlanders' incomes being spent on food than is currently the case.
The per capita consumption of meat in Gortland is increasing at roughly the same rate across all income levels.
The per capita income of meat producers in Gortland is rising faster than the per capita income of grain producers.
People in Gortland who increase their consumption of meat will not radically decrease their consumption of grain.
因果，人均收入上涨，粮食产量不变，需求却上升→需要进口粮食、肉
搭桥，即构成因果（其实取反比较好做）
A、种粮面积下降，无关
B、进口不会提高人均收入，无关
C、人均消耗肉与收入涨幅一致，与粮食无关
D、肉生产者收入增长更快，无关
E、粮食的消耗不会减少肉产量的消耗，CORRECT；粮食需求上升不会导致肉需求下降
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