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  • 更新 2022-09-03
  • 科目 英语
  • 题型 完型填空
  • 难度 中等
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Buenos Aires in Argentina is the second biggest city in South America, with about 13 million people. To          the city at night requires over 125,000 streetlamps. As you can imagine, that uses a lot of          and costs a lot of money. But the city has decided to deal with this problem in a way that can save energy and reduce pollution and make the city          at night.
After a public bidding(竞标)         , Philips has been selected to replace the majority of the city’s streetlamps with new LED ones. These LED streetlamps are expected to         energy use by 50% for the city, which means a significant reduction in CO2 emissions (排放), and they offer a          that is 5 times longer than traditional lighting.
That’s just one city. It’s          that if cities around the world made a switch to LED streetlamps like Buenos Aires,         would add up to $180 billion in reduced energy costs each year.

A.put up B.light up C.cheer up D.take up

A.money B.equipment C.energy D.space

A.quieter B.prettier C.cleaner D.safer

A.process B.task C.moment D.suggestion

A.produce B.reduce C.multiply D.strengthen

A.method B.length C.plan D.lifetime

A.said B.reported C.estimated D.known

A.savings B.prices C.expenses D.users

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