这道题D选项看上去不错啊。题目说Comparisons of the average standards of living of the citizens of two countries should reflect the citizens’ comparative access to goods and services. 说明the citizens’ comparative access to goods and services只是Comparisons of the average standards of living of the citizens of two countries 的必要条件，所以D选项的comparative access to goods and services is only one of several factors relevant in determining quality of life可以构成But it is difficult to get an accurate comparison of average standards of living from these figures, 这样一个结论的基础。请nn指教。谢谢。
14. Which of the following, if true, best completes the argument below?
Comparisons of the average standards of living of the citizens of two countries should reflect the citizens’ comparative access to goods and services. Reliable figures in a country’s own currency for the average income of its citizens are easily obtained. But it is difficult to get an accurate comparison of average standards of living from these figures, because______
(A) there are usually no figures comparing how much of two different currencies must be spent in order to purchase a given quantity of goods and services
(B) wage levels for the same job vary greatly from country to country, depending on cultural as well as on purely economic factors
(C) these figures must be calculated by dividing the gross national product of a country by the size of its population
(D) comparative access to goods and services is only one of several factors relevant in determining quality of life（A）
(E) the wealth, and hence the standard of living, of a country’s citizens is very closely related to their income
Eventually I figured it out.
Thank you very much.
average standards of living ---reflects---access to goods and services;(premise or principle)
average income in native currency can be easily get---, BUT harder to use these figures for average standards of living because... (we can expect the answer must explain that something particularly with the value of natice currency is wrong...),
with this information in mind, it is easy to find that A is the best one.
还是不太明白啊
第一句话是在说 comparisons应该反映出人们获取货物和服务的情况 吗？
是comparison-->access吗？
那为什么D不对啊
呃，好像有点想明白了
这样理解对吗？
access是comparisons的充分条件
有了access就确保了comparisons的accurate了
是这样吗？
所以D错
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