畜牧水产养殖已成为湖南农村的第一大产业。
Pasturage aquiculture already made the biggest industry of Hunan country.
目的：了解湖南农村空巢老人生活质量及其影响因素。
Objective: to explore the quality of life (QOL) and its influential factors of the empty nest elderly in Hunan rural areas.
目的了解湖南农村儿童生长发育、疾病和智力发育状况及其影响因素。
Objective To understand growth and development status, diseases, intelligence development status of rural children in Hunan.
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