搜索结果: 1-1 共查到“法学 teenage fertility”相关记录1条 . 查询时间(0.078 秒)
Explaining Demographic Trends in Teenage Fertility, 1980 -1995
Demographic Trends 1980 -1995 Teenage Fertility
2009/9/15
Context: The teenage birthrate rose sharply in the late 1980s and early 1990s, and then declined in the 1990s. Attempts to explain these changes have failed to account for the changing environment in ...