Problem Solving
试题详情
题目：
Abdul, Barb, and Carlos all live on the same straight road, on which their school is also located. The school is halfway between Abdul’s house and Barb’s house. Barb’s house is halfway between the school and Carlos’s house. If the school is 4 miles from Carlos’s house, how many miles is Abdul’s house from Carlos’s house?
选项:
A、 the price of oil is expected to remain relatively stable over the next several years
B、 the improvement in the economic situation in Utrania is expected to result in a dramatic increase in the proportion of Utranians who own automobiles
C、most of the investment in new oil fields in Utrania is expected to come from foreign sources
D、new technology is available to recover oil from old oil fields formerly regarded as depleted
E、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
答案:
D
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