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题库 / OG12-CR-75
An overly centralized economy, not the changes in the climate, is responsible for the poor agricultural production in Country X since its new government came to power. Neighboring Country Y has experienced the same climatic conditions, but while agricultural production has been falling in Country X, it has been rising in Country Y.
Which of the following, if true, would most weaken the argument above?
Industrial production also is declining in Country X.
Whereas Country Y is landlocked, Country X has a major seaport.
Both Country X and Country Y have been experiencing drought conditions.
The crops that have always been grown in Country X are different from those that have always been grown in Country Y.
Country X's new government instituted a centralized economy with the intention of ensuring an equitable distribution of goods.
因果推理才对吧
前提（因）：和Y一样的天气，Y产量增加，X产量下降
结论（果）：不是天气，是经济导致X的poor 产量
削弱结论
这是果因推理，前提等于果（晚），结论等于因（早）
前提：相同气候下，Y地没有减产，X地减产。
结论：减产不是气候导致的，是X地新的经济体制引起的。
由现象推及现象背后原因的题型基本上都是果因推理。
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