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Global residential power consumption can be cut by 43 percent if ______.

A. we increase the insulation of walls and water pipes
B. we choose simpler models of electrical appliances
C. we cut down on the use of refrigerators and other white goods
D. we choose the most efficient models of refrigerators and other white goods

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A.Mary has a keen eye for style.B.Nancy regrets buying the dress.C.Nancy and Mary went

A. Mary has a keen eye for style.
B. Nancy regrets buying the dress.
C. Nancy and Mary went shopping together in Rome.
D. Nancy and Mary like to follow the latest fashion.

A.It keeps haunting her day and night.B.Her teaching was somewhat affected by it.C.It

A. It keeps haunting her day and night.
B. Her teaching was somewhat affected by it.
C. It vanishes the moment she steps into her role.
D. Her mind goes blank once she gets on the stage.

Sure, some leftish billionaires like George Soros have been railing against income inequality for years. But increasingly, centrist and right-wing billionaires are starting to worry about income inequality and the fate of the middle class.
In December, Mortimer Zuckerman wrote a column in U.S. News & World Report, which he owns. "Our nation's core bargain with the middle class is disintegrating," lamented (哀叹) the 117th-riehest main in America. "Most of our economic gains have gone to people at the very top of the income ladder. Average income for a household of people of working age, by contrast, has fallen five years in a row." He noted that "Tens of millions of Americans live in fear that a major health problem can reduce them to bankruptcy."
Wilbur Ross Jr. has echoed Zuckerman's anger over the bitter struggles faced by middle-class Americans. "It's an outrage that any American's life expectancy should be shortened simply because the company they worked for went bankrupt and ended health-care coverage," said the former chairman of the International Steel Group.
What's happening? The very rich are just as trendy as you and I, and can be so when it comes to politics and policy. Given the recent change of control in Congress, the popularity of measures like increasing the minimum wage, and efforts by California's governor to offer universal health care, these guys don't need their own personal weathermen to know which way the wind blows.
It's possible that plutocrats (有钱有势的人) are expressing solidarity with the struggling middle class as part of an effort to insulate themselves from confiscatory (没收性的) tax policies. But the prospect that income inequality will lead to higher taxes on the wealthy doesn't keep plutocrats up at night. They can live with that.
No, what they fear was that the political challenges of sustaining support for global economic integration will be more difficult in the United States because of what has happened to the distribution of income and economic insecurity.
In other words, if middle-class Americans continue to struggle financially as the ultrawealthy grow ever wealthier, it will be increasingly difficult to maintain political support for the free flow of goods, services, and capital across borders. And when the United States places obstacles in the way of foreign investors and foreign goods, it's likely to encourage reciprocal action abroad. For people who buy and sell companies, or who allocate capital to markets all around the world, that's the real nightmare.
What is the current topic of common interest among the very rich in America?

A. The fate of the ultrawealthy people.
B. The disintegration of the middle class.
C. The inequality in the distribution of wealth.
D. The conflict between the left and the right wing.

听力原文: So we've already talked a bit about the growth of extreme sports, like rock-climbing. As psychologists, we need to ask ourselves, "Why is this person doing this?", "Why do people take these risks and put themselves in danger when they don't have to?"
One common trait among risk-takers is that they enjoy strong feelings or sensations. We call this trait "sensation seeking". A sensation-seeker is someone who is always looking for new sensations. What else do we know about sensation seekers? Well, as I said, sensation-seekers like strong emotions. You can see this trait in many parts of a parson's life not just in extreme sports. For example, many sensation seekers enjoy hard rock music. They like the loud sound and strong emotion of the songs. Similarly, sensation-seekers enjoy frightening horror movies. They like the feeling of being scared and horrified while watching the movie. This feeling is even stronger for extreme sports where the person faces real danger. Sensation-seekers feel that danger is very exciting. In addition, sensation-seekers like new experiences that force them to push their personal limits. For them, repeating the same things everyday is boring. Many sensation-seekers choose jobs that involve risk, such as starting a new business or being an Emergency Rotan doctor. These jobs are different everyday, so they never know what will happen. That's why many sensation-seekers also like extreme sports. When you do rock-climbing, you never know what will happen. The activity is always new and different.
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A. Enjoying strong feelings and emotions.
B. Defying all dangers when they have to.
C. Being fond of making sensational news.
Dreaming of becoming famous one day.

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