请教一道逻辑题

dedeyuky · 发表于 2011-9-14 20:24:34

There are fundamentally two possible changes in an economy that will each cause inflation unless other compensating changes also occur. These changes are either reductions in the supply of goods and services or increases in demand. In a prebanking economy the quantity of money available, and hence the level of demand, is equivalent to the quantity of gold available.If the statements above are true, then it is also true that in a prebanking economy
(A) any inflation is the result of reductions in the supply of goods and services
(B) if other factors in the economy are unchanged, increasing the quantity of gold available will lead to inflation
(C) if there is a reduction in the quantity of gold available, then, other things being equal, inflation must result
(D) the quantity of goods and services purchasable by a given amount of gold is constant
(E) whatever changes in demand occur, there will be compensating changes in the supply of goods and services

答案选B。最后一句我不是很明白，还想问问E选项。

dedeyuky · 发表于 2011-9-15 00:25:20

ashcroft · 发表于 2011-9-15 22:05:53

must be true的题目，这个我也错了，尝试来分析下：
the given causal link: Either reduction in supply or increase in demand will induce a inflation.
situation: in prebanking economy, quantity of money=level of demand=quantity of gold.
到这里出现一个预判就是题目多半会涉及inflation in a prebanking economy. 那么目前简单的推论就是 increase the quantity of gold or quantity of money will probably induce a inflation in a prebanking economy.
再看选项：
a：和题干给出的causal link就不一样，错误。
b：和预计推论完全一样，并且排除了other compensating changes的可能性，正确。
c：推论反了，减少黄金不会导致通货膨胀，错误。
d：题目中只说需求水平和黄金量以及货币量是一样的，没有提到供给量的问题，也没有说是否恒定的问题，错误。
e：无论需求端发生什么改变，总会有补助性的改变发生在供应段。这是一个保证不出现通货膨胀的情况，题目当中不涉及如何不出现通货膨胀，无关选项，错误。

请教一道逻辑题

所属分类: GMAT考试

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