题目内容
How can we get rid of garbage (垃圾) Do we have enough energy sources to meet our future energy needs These are two important questions that many people are asking today. Some people think that man might be able to solve both problems at the same time. They suggest using garbage as an energy source, and at the time it can save the land to hold garbage. For a long time, people buried garbage or dumped(倾倒)it on empty land. Now, empty land is scarce. But more and more garbage is produced each year. However, garbage can be a good fuel to use. The things in garbage do not look like coal, petroleum, or natural gas; but they are chemically similar to these fossil(化石)fuels. As we use up our fossil-fuel supplies, we might be able to use garbage as an energy source. Burning garbage is not a new idea. Some cities in Europe and the United States have been burning garbage for years. The heat that is produced by burning garbage is used to boil water. The steam that is produced is used to make electricity or to heat nearby buildings. In Paris, France, some power plants burn almost 2 million metric tons of the cities garbage each year. The amount of energy produced is about the same as would be produced by burning almost a half million barrels of oil. Our fossil fuel supplies are limited. Burning garbage might be one kind of energy source that we can use to help meet our energy needs. This method could also reduce the amount of garbage piling up on the earth. The best title for the passage may be________.
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颈1～2段脊髓受累
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If the Europeans thought a drought—a long period of dry weather-was something that happened only in Africa, they know better now. After four years of below —normal rainfall (in some cases only 10 percent of annual average), vast areas of France, Spain, Portugal, Belgium, Britain and Ireland are dry and barren(贫瘠). Water is so low in the canals of northern France that waterway traffic is forbidden except on weekends. Oyster (牡蛎) grows in Brittany report a 30 percent drop in production because of the loss of fresh water in local rivers necessary for oyster breeding. In southeastern England, the rolling green hills of Kent have turned so brown that officials have been weighing plans to pipe in water from Wales. In Portugal, farmers in the southern Alentejo region have held prayer meeting for rain—so far, in vain. Governments in drought-spread countries are taking severe measures. Authorities in hard-hit areas of France have banned washing cars and watering lawns. In Britain, water will soon be metered, like gas and electricity, "The English have always taken water for granted," says Graham Warren, a spokesman of Britain’s National Rivers Authority. "Now they’re putting a price on it. " Even a sudden end to the drought would not end the misery in some areas. It will take several years of unusually heavy winter rain, the experts say, just to bring existing water reserves up to their normal levels. Which of the following is the most appropriate title for the passage
患者，男性，65岁，1小时前打太极拳时突然出现头痛，呕吐，数分钟后出现右侧偏瘫和偏身感觉障碍，头颅CT示左侧基底核高密度灶，最常见的病因是
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