单词：net reproductive ratio
单词：net reproductive ratio 相关文章
图片 by Jason Marshall Some math is functional. Some math is fun. And some math is simply stunning. If that last description sounds improbable to you, then today just might change your mind. Because now that weve covered enough ground, were going t
数学英语
图片1 图片2 by Jason Marshall Despite many peoples assumption to the contrary, math is undeniably artistic. It takes a tremendous amount of creative muscle and artistry to devise mathematical solutions. And, as made evident by their frequent batt
数学英语
DEVELOPMENT REPORT – July 1, 2002: Reproductive Health Report 28 Jun 2002, 21:24 UTC This is the VOA Special English Development Report. A new report has been released about sexual and reproductive
农业与发展
BEIJING, May 13 (Xinhuanet) - China's central bank announced on Saturday it would lower the reserve requirement for commercial lenders by 50 basis points, the second time it has taken such action this year to inject more market liquidity and shore up
英语新闻
China's sex ratio is quite worrying nowadays. According to census data, China's sex ratio at birth was 108 males to every 100 females in the early 1980s, only slightly above the natural rate of 103 to 107. In 2000 the ratio was 116.9 males to 100 fem
英闻天下
10 Worst States To Be a Woman State Republicans have introduced nearly 1,000 laws restricting women's reproductive health access. Here are 10 of the worst states to be a woman between puberty and menopause. In a time of war and record unemployment, t
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