求解曼哈顿CR P114页中的一道逻辑题例题

zlk010411 · 发表于 2022-7-30 17:33:46

When news periodicals begin forecasting a recession, people tend to spend less money on nonessential purchases. Therefore, the perceived threat of a future recession decreases the willingness of people to purchase products that they regard as optional or luxury goods.

Which of the following is an assumption on which the argument depends?

(A) People do not always agree as to which goods should be considered luxury goods.
(B) Many more people read news periodicals today than five years ago.
(C) Most people do not regularly read news periodicals.
(D) Decreased spending on nonessential goods does not prompt news periodicals to forecast a recession.
(E) At least some of the biggest spending consumers prior to the recession were among those who curtailed their spending after the recession began.

本题问assumption，D选项曼哈顿的解释是这和argument的表达方式相反。即：D选项说：花费的减少不会导致新闻预测。而题目的argue是：新闻预测导致花费减少。我觉得D选项意思上看是arguement的逆否命题，为什么可以作为原命题的assumption（假设）？求大佬给我解答，有些转不过来。

[逻辑小分队] 求解曼哈顿CR P114页中的一道逻辑题例题

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