birth rates fell below the replacement rate of 2.1 children
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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](/uploads/image/z/13666738-58-8.jpg?t=birth+rates+fell+below+the+replacement+rate+of+2.1+children)
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.
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
the birth rate is the number of births compared to the numbe
( )of the small children ,the foolish man suddenly fell into
the birth of
英语翻译America’s birth rate fell to a record low last year with
翻译:the national birth rate falls down steadily.
for most children,however,the birth of jesus is not as a v
one of two children born at the same birth(a noun)
reduce the cancer rates里rate是复数,而牛津词典却出现了the divorce rate之类的
英语翻译1、Does the factory employ children below the age of 16?2
THE BIRTH OF TRAGEDY怎么样
_____means the date of birth