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?
(A) The total acreage devoted to grain production in Gortland will soon decrease.無關
(B) 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.無關
(C) The per capita consumption of meat in Gortland is increasing at roughly the same rate across all income levels.平行資訊
(D) The per capita income of meat producers in Gortland is rising faster than the per capita income of grain producers. 無關
(E) People in Gortland who increase their consumption of meat will not radically decrease their consumption of grain.
Ans:E
有一點我還是不懂,
E的意思:喜歡吃肉的,若沒減少穀物的消費,則G國得進口
相否的喜歡吃肉的,若減少穀物消費,則G不用進口穀物
但肉不是也要好多穀物才能生產嗎,因此如果肉增加,G國不是都得進口穀物嗎
這樣這個前提有效嗎?
哪裡錯了
