这项调查研究的主题包括社会和人口统计以及健康和生活方式。

This included questions on social and demographic themes, as well as health and life style.

youdao

这项调查研究的主题包括社会和人口统计以及健康和生活方式。

This included questions on social and demographic themes, as well as health and life style.

youdao