2. 外语
  3. In 1969 what was the ratio of dollars of domestic operating revenues to miles flown?

In 1969 what was the ratio of dollars of domestic operating revenues to miles flown?

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问题
In 1969 what was the ratio of dollars of domestic operating revenues to miles flown?
选项 A、4/1
B、3/1
C、3/2
D、2/3
E、1/4
答案B
解析 标题：1960年到1975年国内航班的营业收入，飞行里程和载客人数1969年国内航班的营业收入(以美元计)与飞行里程(以英里计)的比是多少?
解：本题的正确答案为(B)。从第一张图中查得1969年Billions of Dollars=6，Billions of Miles=2.0，所以有6/2=3。
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