题目内容
（请给出正确答案）
A.two
B.three
C.four
D.five
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（由简答题聘请的专业题库老师提供的解答）
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更多“A rectangle has ______ angles.”相关的问题
| 阅读理解。 |
| Solar energy for your home is coming. It can help you as a single home owner. It can help the whole country as well. Whether or not solar energy can save your money depends on many things. Where you live is one factor and the type of home you have is another. Things like insulation (绝缘材料), present energy costs, and the type of system you buy are added factors. Using solar energy can help save our precious fuel. As you know, our supplies of oil and gas are very limited. There is just not enough on hand to meet all our future energy needs. Sooner or later Mother Nature will say that's all. The only way we can delay hearing those words is by starting to save energy now and by using other sources, like the sun. We won't have to worry about the sun's running out of energy for another several billion years or so. Besides, the sun doesn't offer as many problems as other energy sources. For example, fossil fuel (矿物 燃料) adds to already high pollution levels. With solar energy, we will still need sources of energy, but we won't need as much. That means we can cut down on our pollution problems. With all these good points, why don't we use more solar power？ There are many reasons for this. The biggest reason is money. Until now, it was just not practical for a home owner to put in a solar unit. There were cheaper sources of energy. All that is changing now. Solar costs are starting to equal the costs of oil and electricity. Experts say that gas, oil and electricity prices will continue to rise. The demand for electricity is increasing rapidly. But new power plants will use more gas, oil or coal. Already in some places the supply of electricity is being rationed (限量供应). Solar energy is now in its infancy (初期). It could soon grow to become a major part of our nation's energy supply. |
| 1. What's this passage mainly about？ |
[ ] |
| A. Something about solar energy and pollution. B. Solar energy. C. Energy and pollution. D. Energy and money. |
| 2. Solar energy can help us _____. |
[ ] |
| A. escape punishment from nature B. become home owners C. get rid of present energy D. save our precious fuel |
| 3. The sun is an endless source of energy, and it will not run out of energy for _____. |
[ ] |
| A. several million years B. several hundred years C. several billion years D. several thousand years |
| 4. Which of the following statements is TRUE？ |
[ ] |
| A. Energy from coal would not pollute our living environment. B. Energy from natural gas would not pollute our living environment. C. Energy from the sun would not pollute our living environment. D. Energy from oil would not pollute our living environment. |
| 5. Solar energy is now in its infancy, _____. |
[ ] |
| A. but in the future it will become an important part of our nation's energy supply B. so we will build more power plants C. and the supply of electricity will be rationed throughout the country D. so we don't need it |
A、2000
B、2001
C、2002
D、2003
E、2004
听力原文： As companies increasingly test new drugs in other countries, they are struggling to decide what, if anything, they owe the patients who served as test subjects. Some companies have chosen not to sell their drugs in the countries where they were tested; Others have marketed their drugs there, but few patients in those countries can afford them. The issue is especially difficult when it comes to drugs that do not save lives but can vastly improve the quality of life. Nobody knows for sure how many patients in other countries have had to forgo drugs that improved their lives when clinical trials ended, and companies do not give out patients' names, to protect their privacy. But the issue is very much on the minds of company researchers and executives.
Ethicists say that they, too, are troubled but that their field has reached no consensus on what companies should do. "Do we have an obligation to everyone in the trial or to everyone in the community, the province, the nation, the region of the world？" asked Dr. Ruth Faden, the director of the Phoebe R. Berman Bioethics Institute at Johns Hopkins University. "We haven't really figured this out."
Yet, Dr. Faden said, "many physician investigators feel uncomfortable with the idea of using patients in studies and then not being able to continue to help them when the trial ends."
Companies must make business decisions about where to market their drugs, figuring out whether they can earn enough money to justify applying for approval, setting up business offices and hiring a sales force. If they decide not to market a drug in a given country, they are unlikely to provide it to patients there free of charge. To provide a drug for what medical professionals call compassionate use, companies must set up a distribution system, train doctors to administer the drugs, monitor patients for adverse effects and track the results.
Whether to undertake a compassionate-use program for drugs that improve the quality of life but do not prolong it poses "a delicate question", said Tony Plohoros, a spokesman for Merck, a company that has systems to distribute lifesaving drugs in poor countries where there is a need.
The issue is especially difficult for small companies that as yet have no products on the market. A small company cannot afford to set up a marketing system in countries where few can buy the drug, or a distribution system to give its drugs away.
In the United States, patients who participate in clinical trials often continue to receive the drug being tested until it is approved. After that, they can buy it or, if they cannot afford it, apply to special programs that most companies offer to help people who could not otherwise get drugs they need.
But with the exception of AIDS drugs, which companies provide free or at low cost to patients in poor countries, there is no industry consensus about what to do internationally, especially when drugs are not lifesaving. And even when companies market their drugs in poor countries, they tend not to set up a system to give the drugs away to study subjects after a clinical trial ends.
Ethicists acknowledge that companies are businesses and accountable to investors.
But on the other hand, Dr. Gostin said, there is something troubling about "parachute research", in which a company drops into a country, conducts its research and then leaves.
"It raises the question of what ethical obligation, if any, there might be to give back and make sure there is access to the drug after the trials are over," Dr. Gostin said.
The participants in a study take a risk to help a company determine if its drug is safe and effective, he said, and "it seems to me that there is an ethical obligation to give back."
(41)
A、Fully-fleshed characters who are realistic, unique, and memorable.
B、Well-detailed settings.
C、Believable dialogues to advance character development and the action of plot.
D、Significant themes of importance to people and society.
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