[填空题]Energy use and air pollution have been synonymous in China for decades, especially in urban areas. (66) Fifteen or 20 years ago in China’s northern cities, such as Shenyang, air pollution was characterized by decreased visibility caused by high levels of particulates and sulfur dioxide (SO₂). Although conditions have improved in modern cities, such as Beijing and Shanghai, China still has three of the ten most polluted cities in the world and hundreds of cities that are not in compliance with the World Health Organization (WHO) air quality guidelines.
(67) More than 120 cities have populations of more than one million, and by the end of the twenty-first century, 10 to 20 cities will have populations of more than 10 million. Rapid urbanization will challenge governments at all levels, not only to provide basic services to growing urban populations, but also to modernize, to continue to develop economically, and to address environmental concerns, particular

[填空题]Energy use and air pollution have been synonymous in China for decades, especially in urban areas. (66) Fifteen or 20 years ago in China’s northern cities, such as Shenyang, air pollution was characterized by decreased visibility caused by high levels of particulates and sulfur dioxide (SO₂). Although conditions have improved in modern cities, such as Beijing and Shanghai, China still has three of the ten most polluted cities in the world and hundreds of cities that are not in compliance with the World Health Organization (WHO) air quality guidelines.
(67) More than 120 cities have populations of more than one million, and by the end of the twenty-first century, 10 to 20 cities will have populations of more than 10 million. Rapid urbanization will challenge governments at all levels, not only to provide basic services to growing urban populations, but also to modernize, to continue to develop economically, and to address environmental concerns, particular

[简答题]Indian energy officials have been seeking ways to use less imported oil to provide energy.

[填空题]What have Edmond Brothers been
They have been ______.

[单项选择]Wind energy has been praised as cost-effective to produce clean energy as well as jobs. That promise, along with new government subsidies (补贴), has helped wind turbines (涡轮机) pop up on hills and fields throughout Americ
A. According to critics, wind-energy development may cause the deaths of 20,000 to 30,000 birds.B. distinction of many species in the area.C. habitat fragmentation and deaths of birds.D. environment recovery from destruction.

[单项选择] Wind Energy Wind energy development has been thriving both in the United States and around the world. This reflects not only the declining cost of the resource and the improved performance of wind power plants, but also a growing awareness among utilities and other potential customers that this renewable energy technology offers many benefits for the economy and the environment. -Wind energy can help create new business and jobs, keep energy dollars circulating in local economies and reduce reliance on imported energy. -Wind energy can help protect utilities and ratepayers from risks associated with changing fuel prices, new environmental regulations, uncertain load growth and other unpredictable costs. -Wind energy can reduce a utility’’s pollutant emissions, helping power companies meet environmental regulations and satisfy their customers’’ desire for clean power sources. In the past, these benefits were not enough t
A. Y
B. N
C. NG