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I like this cloth. It feels (good) ______ .
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One of the most vivid symbols of global warming is the torrents of melt water that drain from the lakes that form each summer on Greenland’s ice sheet. Recent studies have shown that this water, which flows deep into the ice through natural drainpipes called moulins, allows the ice to slide faster over bedrock toward the ocean. And the faster the ice flows, the faster sea levels rise. But a Dutch study using 17 years of satellite measurements in western Greenland suggests that the movement associated with the meltwater is not as rapid as had been feared. The acceleration appears to be a transient summer phenomenon, the researchers said, with the yearly movement actually dropping slightly in some places. "The positive-feedback ,mechanism between melt rate and ice velocity," says the report, published Friday in the journal Science, "appears to be a seasonal process that may have only a limited effect on the response of the ice sheet to climate warming over the next decades." Greenland is still losing more ice through melting than it gains through snowfall, other measurements show. The study was led by Roderik S. W. van de Wal of the Institute for Marine and Atmospheric Research of the University of Utrecht. He said the overall slowdown might be because of changing plumbing deep inside the ice. The study builds on earlier work also showing a limited overall change in ice flow from the surface melting. The authors and independent experts familiar with the research stressed that the findings did not preclude the possibility that more widespread surface melting could eventually destabilize big areas of Greenland, the world’s second largest ice storehouse. Richard B. Alley, a glaciologist at Pennsylvania State University, said that big lakes were likely to form as areas of melting spread inland, and that this could unlock new ice regions to start sliding more. But Dr. Alley and other experts said the new study showed that it was unlikely that Greenland’s ice had already become destabilized in ways that could cause a surge in sea levels. According to the Dutch study, ______.
A—Business English B—World HistoryC—Mathematics D—Insurance CompanyE—Chinese History F—Computer ScienceG—Art H—BiologyI—Economist J—AgricultureK—Satellite L—ArchitectureM—Engine N—AccountingO—Foreign Language P—Banking ( )卫星 ( )发动机
制订课时体育教学计划的基本步骤是：确定课时教学目标；排列教学内容；针对教学内容组织教法；安排各项内容教学时间和各练习的次数；计划本课所需的场地器材和用具；设计课的生理负荷和练习密度；课后小结。( )
A small piece of fish each day may keep the heart doctor away. That’s the finding of an extensive study of Dutchmen in which deaths from heart disease were more than 50 percent lower among those who consumed at least an ounce of salt water fish per day than those who never ate fish. The Dutch research is one of three human studies that give strong scientific backing to the long held belief that eating fish can provide health benefits, particularly to the heart. Heart disease is the number-one killer in the United States, with more than 550,000 deaths occurring from heart attacks each year. But researchers previously have noticed that the incidence (发生率) of heart disease is lower in cultures that consume more fish than Americans do. There are fewer heart disease deaths, for example, among the Eskimos of Greenland, who consume about 14 ounces of fish a day, and among the Japanese, whose daily fish consumption averages more than 3 ounces. For 20 years, the Dutch study followed 852 middle-aged men, 20 percent of whom ate no fish. At the start of the study, the average fish consumption was about two-thirds of an ounce each day with more men eating lean (瘦的) fish than fatty fish. During the next two decades, 78 of the men died from heart disease. The fewest deaths were among, the group who regularly ate fish, even at levels far lower than those of the Japanese or Eskimos. This relationship was true regardless of other factors such as age, high blood pressure, or blood cholesterol (胆固醇) levels.
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