新东方逻辑补充题 Section III 12 &14
12.Meteorologists say that if only they could design an accurate mathematical model of the atmosphere with all its complexities, they could forecast the weather with real precision. But this is an idle boast, immune to any evaluation, for any inadequate weather forecast would obviously be blamed on imperfections in the model.
which of the following, if true, could best be used as a basis for arguing against the author's position that the meteorologists' claim cannot be evaluated?
the answer is: Most significant gains in the accuracy of the relevant mathematical models are accompanied by clear gains in the precision of weather forecasts.
不是很懂怎么理解～
14.Of the countries that were the world's twenty largest exporters in 1953, four had the same share of total world exports in 1984 as in 1953. Theses countries can therefore serve as models for those countries that wish to keep their share of the global export trade stable over the years.
Problem: Cast the most serious doubt on the suitability?
Answer: Of the four countries, two had a much larger, and two had a much smaller, share of totla world exports in 1970 than in 1984.
My answer: With respect to the mix of products each exports, the four countries are very different from each other.
我想可能是我对这道题的题干理解有点问题，烦问大侠怎么解释？我认为是有4个国家一直以来都保持相同的份额。答案的意思却说4个国家在84年和70年的份额不同！不懂阿。。 |
