单选题 Demographers doing research for an international economics newsletter claim that the average per capita income in the country of Kuptala is substantially lower than that in the country of Bahlton. They also claim, however, that whereas poverty is relatively rare in Kuptala, over half the population of Bahlton lives in extreme poverty. At least one of the demographers' claims must, therefore, be wrong.
The argument above is most vulnerable to which of the following criticisms?

A、 It rejects an empirical claim about the average per capita incomes in the two countries without making any attempt to discredit that claim by offering additional economic evidence.
B、 It treats the vague term "poverty" as thought it had a precise and universally accepted meaning.
C、 It overlooks the possibility that the number of people in the two countries who live in poverty could be the same even though the percentages of the two populations that live in poverty differ markedly.
D、 It fails to show that wealth and poverty have the same social significance in Kuptala as in Bahlton.
E、 (E) It does not consider the possibility that incomes in Kuptala, unlike those in Bahlton, might all be very close to the country's average per capita income.

【正确答案】 E

【答案解析】[解析] 本题读题重点在however后面，并且是由一个claim得出一个结论，且用这个结论来解释claim，反对一般用“有其他原因”。(E)指出在Kuptala所有人的收入也许接近该国的人均收入，即Kuptala的每个人之间的收入差距较小，从而解释了上述claim，所以(E)正确。