更多"Delta could soon become the third m"的相关试题:
[单项选择]Delta could soon become the third major airline in the past two years to fail on its pensions. If it does, federal pension insurance would cover some $ 8.4 billion in benefits. Even so, many Delta employees could end up with less than they expected. And American taxpayers would move closer to the prospect of having to save the federal pension insurance agency.
The traditional employer-provided pension system is in trouble, and Congress is right to be considering reforms that would prevent defaults, or at least mitigate them, while shoring up federal pension insurance. Unfortunately, the bills that have emerged from the reform effort have serious weaknesses that would undercut those worthy goals, and in some cases could make things worse.
One of the worst provisions---currently in the Senate version of the reform bill--would exempt ailing airlines from tougher new pension-funding rules that would apply to all other companies. Delta and Northwest have lobbied hard for the e
A. Because three airlines have failed in their pension plans.
B. Because those employees couldn’t get enough pension.
C. Because American taxpayers themselves should support the federal pension insurance agency.
D. Because the traditional employer-provided pension system is no longer reliabl
[填空题]I hope I could fly to America as soon as I could.
I hope I could fly to America as soon as ______.
[单项选择]Scraps of food could soon be helping power your home, thanks to an ultra-cheap bacteria-driven battery. Its developers hope that instead of feeding the dog or making garden compost(混合肥料) ,organic household waste could top up your home’s electricity.
Although such "microbial fuel cells" (MFCs)have been developed in the past, they have always proved extremely inefficient and expensive. Now Chris Melhuish and technologists at the University of the West of England(UWE)in Bristol have come up with a simplified MFC that costs as little as ￡10 to make.
Right now, their fuel cell runs only on sugar cubes, since these produce almost no waste when broken down, but they aim to move on to carrot power. "It has to be able to use raw materials, rather than giving it a refined fuel," says Melhuish.
Inside the Walkman-sized battery, a colony of E. coil bacteria produce enzymes that break down carbohydrates, releasing hydrogen atoms. The cell also contains chemicals that drive a series o
A. Microbial fuel cells.
B. Cost-efficient microbial fuel cells.
C. The efficiency of microbial fuel ceils.
D. Organic battery runs robot.
[单项选择]
[听力原文]
Electrical devices could soon use power made by human energy. Scientists say they have developed an experimental device that produces electricity from the physical movement of a person walking. British scientist Max and other scientists in Canada and the United States developed the device.
The device connects to a person’s knee. As the person walks, the device captures energy each time the person slows down. The movements of the walking person push parts of a small machine that produces electricity. Using the device, 22an adult walking quickly could produce thirteen wars of electricity in just a minute. Max says walking at that speed could produce enough power to operate a laptop computer for six minutes.
There are several possible uses for the device. Developers say it could help people who work in areas without electricity to operate small computers. 23The device could also be used in hospitals to operate heart pacemakers; it c
A. 780 watts.
B. 760 watts.
C. 800 watts.
D. 600 watts.
[简答题]Could you please introduce your major in college and your strong points
[填空题]If you are very busy, how could you get the major information from the newspaper
You could read the ______ and the
[填空题]What does a major new study show
A major new study shows that the situation （）.
[填空题]What does a major new study show
A major new study shows that the situation ______.
