题目内容
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提问人:网友xiaogang0805
发布时间:2022-01-06
[主观题]
The pilot of a small aircraft with a 40-gallon fuel tank wants to fly to Cleveland, which
is 480 miles away. The pilot recognizes that the current engine, which can fly only 8 miles per gallon, will not get him there. By how many miles per gallon must the aircraft's fuel efficiency be improved to make the flight to Cleveland possible?
A.2
B.4
C.12
D.40
E.160
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