The progress of medical technology has increased the life expectancy of people. This can have a positive impact on the economy because it ___. A. increases the labor force B. reduces social welfare costs C. improves environmental quality D. promotes international cooperation 相关...
Jay Olshansky of the University of Illinois-Chicago. Olshansky was the lead writer of the study.Mark Hayward of the University of Texas was not involved in the study. However, he called it “a valuable addition to the mort...
Life expectancy is an estimate of the average number of years a baby born in a particular year might expect to live. The measurement assumes death rates at the time of birth do not change. 预期寿命是对特定年份出生的婴儿预期寿命的平均年数的估计。该测量假设出生时的死亡率没有变化。 Life ...
[01:41.36]Still the life expectancy measurement has problems. [01:47.36]For example, life expectancy is an estimate [01:51.84]that cannot include new developments or changes [01:55.96]that might affect the length of people's...
Since the mid-1950s, life expectancy(平均寿命)around the world has increased greatly.and many scientists believe that it will increase in the future.In the early 1950s the world life expectancy rate was 46. 4 years. By 1998, it had increased to 63 years. In more developed countries, life...
With the help of advanced medical technology, people's life expectancy has ___. A. increased B. reduced C. remained D. stayed 相关知识点: 试题来源: 解析 A。此题考查动词词义辨析。随着先进医疗技术的帮助,人们的寿命预期应该是增加了,increased 符合语境。reduced 是减少,remained 和 stayed 是保持...
Humans are living longer around the world. While there have been obvious ups and downs, life expectancy at birth overall has been steadily increasing for many
因为我在游泳上,是好我家和我非常去海, Ilike海。\ “这里,妈妈! \”[translate] athere has a increase in life expectancy and people expect to extend their life span with good living conditions 那里有增量 在生活中 预期和 人们 期望 延伸 他们 生活 间距 与 好 居住 情况[translate]...
ALAN MacDERMID
Over the last five decades, life expectancy has increased globally by___ years. A.19B.45C.65D.5 相关知识点: 试题来源: 解析 A 本题是数字推断题,根据文中“Over the last fifty years,life expectancy has increased globally from forty six years to sixty five.”可得65-46=19,即增加了19年,...