30. What is mentioned about using active oil wells? A. It is likely to have a bright future. B. It can be harmful to people's health. C. It has destroyed the environment in remote areas D. It strengthens Transitional Energy's global influence 相关知识点: 试题来源: 解析 答案见上...
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Several wells are drilled down into the oil sand. Then steam and chemicals are pumped down one well. The hot steam and chemicals soften the bitumen, reduce its viscosity, and flush it to extraction wells where it is pumped to the surface. At the surface the bitumen is cleaned, blended ...
,根据定位词,定位至第三段最后一句:“Wells are much more reliable sources of freshwater, and California is hoping that these deep wells may be the answer to their severe water shortage.” 第三步,对比选项和文章。D选项中的“freshwater”在定位句中原词重现,而选项中的“steady supply of freshwater”...
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are required to operate a profitable oil field. Oil fields are dotted with avariety of extraction equipmentwhich includes drilling rigs, offshore platforms, pump jacks, and more. There may also be exploratory wells probing the edges, pipelines to transport the oil elsewhere, and support facilities...
There are water wells, oil wells, gas wells, and more. Wells have been used in many cultures around the world for over 8,000 years. The first wells were likely dug by hand or with very simple tools. They provided access to groundwater that could be brought to the surface. As rain ...
oil lamps, it wasn't until 1901 that the firstcommercial wellcapable of mass production was drilled at a site known as Spindletop in southeastern Texas. This site produced more than 100,000 barrels of oil in one day, more than all the other oil-producing wells in the United States ...
Some oil wells (油井) were set on fire. Now the Iraqis need food, water and . Many soldiers and people who were hurt in the war need medical care. People also need to find their family members. After the war, some Iraqis broke into Saddam’s palace, government buildings, and stores....