2. 外语
  3. 　　Citizens of the world’s wealthiest countries may live longer than previously predicted, according to a study sponsored by the

　　Citizens of the world’s wealthiest countries may live longer than previously predicted, according to a study sponsored by the

admin2009-08-20  38
问题 　　Citizens of the world’s wealthiest countries may live longer than previously predicted, according to a study sponsored by the National Institute on Aging. By 2050, people in the G-7 nations (Canada, France, Germany, Italy, Japan, the United Kingdom, and the United States) may be living anywhere from 1.3 years to 8 years longer than official estimates now predict. Researchers at Mountain View Research in los Altos, California, examined 50 years of mortality data and found a long-term decline in death rates. That may mean that fewer workers will have to support many more elderly in the future than governments currently expect.
选项 A、aging
B、wealth
C、death rates
D、work force
答案C
解析 此题为快速浏览题。第l句为主题句。
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