25.  Twelve years ago and again five years ago, there were extended periods when the Darfir Republic's currency, the pundra, was weak: its value was unusually low relative to the world's most stable currencies.  Both times a weak pundra made Darfir's manufactured products a bargain on world markets, and Darfir's exports were up substantially. Now some politicians are saying that, in order to cause another similarly sized increase in exports, the government should allow the pundra to become weak again.

Which of the following, if true, provides the government with the strongest grounds to doubt that the politicians' recommendation, if followed, will achieve its aim?

(A) Several of the politicians now recommending that the pundra be allowed to become weak made that same recommendation before each of the last two periods of currency weakness.

(B) After several decades of operating well below peak capacity, Darfir's manufacturing sector is now operating at near-peak levels.

(C) The economy of a country experiencing a rise in exports will become healthier only if the country's currency is strong or the rise in exports is significant.

(D) Those countries whose manufactured products compete with Darfir's on the world market all currently have stable currencies.

(E) A sharp improvement in the efficiency of Darfir's manufacturing plants would make Darfir's products a bargain on world markets even without any weakening of the pundra relative to other currencies.

答案是B。总觉得不对呀……

我也 错了，这题。我选的是E，用另一种方法也可以达到出口的增加的啊？为

什么会是B呢？

没错，货币贬值，出口增加。把这种主观意识带到题里就不好了。

像b说的刚好是不满足这条定律的一个特例。

如果所有生产出口产品的工厂，如果过去几年，能用的资源都用上了，还能干活的机器都没闲着，
都是在near-peak level在运营着，
那即使货币贬值了，他们国家产品在国际市场上便宜了，能生产多少就多少了，
那我想增加出口，我这些工厂也没那个能力生产这么多，
所以，货币贬值也没用。

原文问如果贬值了，为啥不能达到既定效果。

E说的是 用其他方法，不贬值也能增加出口。这个跟问题问的不相关。