LSAT-15-2-16

16. A county airport, designed to serve the needs of private aircraft owners, planned to cover its operating expenses in part by charging user fees to private aircraft using the airport. The airport was unable to pay its operating expenses because the revenue from user fees was lower that expected.

If the statements above are true, which one of the following must also be true?

(A) Most of the country’s citizens live a convenient distance from one or another airport now offering commercial airline services.

(B) Private aircraft owners were unwilling to pay the user fees charged at the airport

(C) The airport’s construction was financed exclusively by private funds (

D) The airport’s operating expenses were greater than the revenues raised from sources other than the airport user fees for private planes

(E) The number of owners of private aircraft who use the county’s airport facilities will not change appreciably in the future

d 如果说The airport’s operating expenses were greater than the revenues raised from  the airport user fees for private planes 感觉还对，D说from sources other than the airport user fees for private planes ，为什么啊？

B为什么错？

operating costs = 1 private users fees + 2 revenues raised other than from private user fees

如果2已经大于operating costs, 那么机场就不会unable to pay its operating expenses了