用“descriptive research”造句大全,descriptive research造句
Methods Retrospective investigation and descriptive research analysis were made with annuals reports of epidemic situation during 1984 to 2002 in Baoan district.
While observation and focus groups are best suited for exploratory research, surveys are best suited for descriptive research and experiment for causal research.
Methods Retrospective survey and descriptive research analysis were made with annuals reports of infections diseases during 1984 and 2003 in Baoan District.