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新GRE阅读考察的方面很多，考生除了拥有大量的词汇以外，还需能够迅速了解出题者的意图。新GRE考试主要考察的是学生的逻辑理解能力和推理能力，大量的练习，相信会给考生带来不同的收获，请看下面的新GRE阅读短文练习。 Excluding purchases by businesses, the average amount spent on a factory-new car has risen 30 percent in the last five years. In the average household budget, the proportion spent on car purchases has remained unchanged in that period. Therefore the average household budget must have increased by 30 percent over the last five years. Which of the following is an assumption on which the argument relies? The average number of factory-new cars pur-chased per household has remained unchanged over the last five years. The average amount spent per car by businesses buying factory-new cars has risen 30 percent in the last five years. The proportion of the average household budget spent on all car-related expenses has remained unchanged over the last five years. The proportion of the average household budget spent on food and housing has remained unchanged over the last five years. The total amount spent nationwide on factory-new cars has increased by 30 percent over the last five years. | 
