What is the towering machine for?

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问题 What is the towering machine for?
  
The towering machines stand in a precise line across the seafloor, and they will be turned loose to capture the power of the wind. And then, after weeks of testing and fine-tuning, America’s first offshore wind farm will begin pumping power into the New England electric grid.
   The idea of building turbines offshore, where strong, steady wind could, in theory, generate large amounts of power, has long been seen as a vital step toward a future based on renewable energy. Yet even as European nations installed thousands of the machines, American proposals ran into roadblocks, including high costs, murky rules about the use of the seafloor, and stiff opposition from people who did not want their ocean views marred by machinery.
   Now, offshore wind may be on the verge of rapid growth in the United States. Using a law passed by a Republican-led Congress in 2005 and signed by President George W. Bush, the Obama administration has been clarifying the ground rules and leasing out large patches of the ocean floor for wind-power development. Nearly two dozen projects are on the drawing board, with some potentially including scores of turbines. Equally important, state governments in recent months have been making big, new commitments to renewable power, driven by a rising sense of urgency about climate change.

选项 A、President George W. Bush is the first person to put the offshore wind on the table.
B、The Obama administration makes a further step on developing the renewable energy.
C、With the support of the government, the project of offshore wind has been under way.
D、The Local governments are communicating with the local people on the pollution of sea.

答案C

解析 文中举了四个例子。第一个是布什的例子,说明从布什政府就为海上风力发电制定了法规。第二个是奥巴马政府的例子,奥巴马政府详细制定了可以进行风力发电的海上区域。第三个例子说明20多个海风发电项目正在进行当中,大量的涡轮机正在安装。第四个例子,当地政府也积极推行这个项目。综上所述,只有选项C的叙述是对原文大意的综述。
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