单项选择题

Passage Two
Questions 57 to 61 are based on the following passage.
One section of the Maytown Elementary School in rural Maytown was built in 1861. Another section was built in the late-1920s. There’s a time clock in the ancient gym that was donated by the class of 1946.
This is a school that could use an update. No, scratch that. It needs to be replaced. There is no air conditioning. And there is no money right now to replace the school, which has an enrollment of 237.
You can travel the United States and find comparable, or worse, conditions in schools throughout the country. It’s part of the overwhelming problem of maintaining and modernizing American infrastructure. It’s hard to even get good data on the physical condition of the nation’s schools. But Lawrence Summers, president’s chief economic adviser, has said that 75 percent of the public schools have structural deficiencies and 25 percent have problems with their ventilation systems(通风系统).
Getting the nation’s schools up to date is an enormous problem, but it’s only a small part of the overall infrastructure challenge. In Pennsylvania, a state in which the governor, Ed Rendell, is all but obsessed with infrastructure, there are still thousands of bridges that either need a lot of work or should be replaced.
Schools, highways, the electric grid, water systems, ports, dams—the list can seem endless—-have to be maintained, upgraded, rebuilt or replaced if the U. S. is to remain a first-class nation with a first-class economy over the next several decades. And some entirely new infrastructure systems will have to be developed.
But these systems have to be paid for, and right now there are not enough people at the higher ranks of government trying to figure out the best ways to raise the enormous amounts of money that will be required, and the most responsible ways of spending that money. And there are not enough leaders explaining to the public how heavy this lift will be, and why it is so necessary, and what sacrifices will be required to get the job properly done.
There are sound ideas available for raising the money to rebuild America’s infrastructure. These include a proposed national infrastructure bank, which would allocate public funds and also leverage private capital for the most important projects. In the absence of a national bank, it might be possible to establish regional infrastructure banks.
In an era of historically high budget deficits, the case has to be made that this is not wasteful spending but essential investments that will yield powerful returns. "If you’re not willing to invest," said Governor Rendell, "you have to be willing to accept an inferior product. That’s the danger we’re facing.\
What method can be taken to raise infrastructure money

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