是200‰，一般都照千分之几活产算

来源: 志在千里 于 2015-12-15 17:05:55 [] [旧帖] [给我悄悄话] 阅读数 : (385 bytes)
回答: 婴儿死亡率200%是怎么算的？ 由 我这是咋啦 于 2015-12-15 16:56:49

The infant mortality rate (IMR) is the number of deaths of infants under one year old per 1,000 live births. This rate is often used as an indicator of the level of health in a country. The infant mortality rate of the world is 49.4 according to the United Nations and 42.09 according to the CIA World Factbook.

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