28. 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.
(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.
(C) The per capita consumption of meat in Gortland
is increasing at roughly the same rate across all
income levels.
(D) The per capita income of meat producers in
Gortland is rising faster than the per capita
income of grain producers.
(E) People in Gortland who increase their
consumption of meat will not radically
-- by 会员 sevenmiles (2011/7/7 19:21:11)
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发表于 2011-7-7 19:24:42