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题库 / Prep2007E2-CR-8
Which of the following most logically completes the argument?
Utrania was formerly a major petroleum exporter, but in recent decades economic stagnation and restrictive regulations inhibited investment in new oil fields. In consequence, Utranian oil exports dropped steadily as old fields became depleted. Utrania's currently improving economic situation, together with less-restrictive regulations, will undoubtedly result in the rapid development of new fields. However, it would be premature to conclude that the rapid development of new fields will result in higher oil exports, because __________.
the price of oil is expected to remain relatively stable over the next several years
the improvement in the economic situation in Utrania is expected to result in a dramatic increase in the proportion of Utranians who own automobiles
most of the investment in new oil fields in Utrania is expected to come from foreign sources
new technology is available to recover oil from old oil fields formerly regarded as depleted
many of the new oil fields in Utrania are likely to be as productive as those that were developed during the period when Utrania was a major oil exporter
premature 过早的
所以选项是要选可以削弱 the rapid development of new fields will result in higher oil exports，而显然B选项是一个完美的他因削弱，即提到了这种情况，即rapid development of new field是由于国内拥有车比例增加而增加的。所以这个原因削弱了原文：“result in higher oil exports"
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