(求助)大全-7-13 - ChaseDream

The
recent decline in the value of the dollar was triggered by a prediction
of slower economic growth in the coming year. But that prediction would
not have adversely affected the dollar had it not been for the
government’s huge budget deficit, which must therefore be decreased to
prevent future currency declines.

Which of the following, if true, would most seriously weaken the conclusion about how to prevent future currency declines?

(A) The government has made little attempt to reduce the budget deficit.

(B) The budget deficit has not caused a slowdown in economic growth.

(D)
Before there was a large budget deficit, predictions of slower economic
growth frequently caused declines in the dollar’s value.（D）

(E)
When there is a large budget deficit, other events in addition to
predictions of slower economic growth sometimes trigger declines in
currency value.

彩色的那句话到底是怎么回事````看不懂 ``请大家帮忙

I vote for D. 彩色部分有两个not，你试着把两个not都去掉，原命题不变，it (指dollar) had been (虚拟语气) for the budget deficit -> prediction would have adversely affected the dollar.翻译成中文就是，当货币跟政府预算赤字挂钩的时候，预测导致赤字，赤字导致币值下降。结论就是，要防止货币下降，必须先减少财政赤字。显然这里的逻辑结论假设了预算赤字发生在币值下降之前，是原因。但是如果币值下降是发生在预算赤字之前呢？显然就没有这种因果关系了。答案D就是这样削弱了结论。