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参考答案:对
An energy analyst forecasts that the price per barrel of crude oil five years from now will range between $ 75 and $105. Assuming a continuous uniform distribution, the probability that the price will be less than $ 80 five years from now is closest to:()
A. 5.6%.
B. 16.7%.
C. 44.4%.
写出下列导线敷设方式标注的中文名称:P:(),W:(),R:(),CT:()。