202. 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
not decrease substantially.
(B) The population of Gortland has remained relatively constant
during the country’s years of growing prosperity.
(C) The per capita consumption of meat in Gortland is roughly the
same across all income levels.
(D) In Gortland, neither meat nor grain is subject to government
price controls.
(E) People in Gortland who increase their consumption of meat will
not radically decrease their consumption of grain.
B 为什么不对。如果人口下降，总消费就下降，也不需要进口了。
望各位指教。谢谢。 | 
