人口学的例句（人口学在句子中的用法）

• demographic research units in the world 世界人口学研究机构
• Demographers talk about a " low - fertility trap " 人口学家称之为 “ 低生育陷阱 ”
• Selectivity of human migration long been the focus of demographers and economists. 人口迁移的选择性一直以来都是人口学家和经济学家关注的焦点.
• At present, a number of villages and neighbourhoods have set up population or marriage education schools. 目前, 中国不少乡村和街道,都建立了人口学校或婚育学校.
• Demography is the analysis of population variables. 人口学是对人口变量的分析.