163. 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? (A) Industrial production also is declining in Country X. (B) Whereas Country Y is landlocked, Country X has a major seaport. (C) Both Country X and Country Y have been experiencing drought conditions. (D) The crops that have always been grown in Country X are different from those that have always been grown in Country Y. (E) Country X’s new government instituted a centralized economy with the intention of ensuring an equitable distribution of goods.
D是他因，B能不能也算是一种他因，只是联系不如D紧密而以？
谢谢。作者: himba 时间: 2006-7-13 07:18
也许landlocked, seaport是导致production不同的其他原因（也许不是），这是你的推理吧，文中没有提到过。 different crops能直接解释为何production不同的其他原因。
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