birth rates fell below the replacement rate of 2.1 children per woman 中的replacement如何理解
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birth rates fell below the replacement rate of 2.1 children per woman 中的replacement如何理解
birth rates fell below the replacement rate of 2.1 children per woman 中的replacement如何理解
birth rates fell below the replacement rate of 2.1 children per woman 中的replacement如何理解
生育率下降到低于替代率的每个妇女生育2.1个孩子.
标准的替代率是2.33,意思是每个妇女要生2个孩子来替代她和丈夫,再多生1/3个孩子来弥补性别差额和早逝.
birth rates fell below the replacement rate of 2.1 children per woman 中的replacement如何理解
Bel
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英语翻译Shopzilla uses a Smart Pricing model which automatically aligns your billed CPC to the quality of traffic,billing higher and lower converting sources at corresponding rates.Your average billed CPC should be lower than the rates listed bel
Japan's rapid development in robots is due to the problems of aging and declining birth rates.
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bel resplro
英语翻译generally believed that the chief reason for the increase in population in developed countries is not so much the rise in birth rates as the decline in death rates as a result of the improvement in medical care.
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incorporation rates
improved rates
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