From 2001 to 2012,many local governments in China closed down village teaching sites for primary school students in the ......

针对广西农村地区留守儿童在生活、学习、心理等方面的问题，基于留守儿童健康成长的需要，主要从五个方面出发，提出解决农村留守儿童相......

城市轨道交通车站规模的第一决定要素是站台宽度.当前对车站站台宽度的计算公式尚未统一,或还不完善,这将直接影响到我国轨道交通......

Patients who present to an emergency department are in a vulnerable state of mind. The population in the emergency depar......

BACKGROUND Kitesurfing is an increasingly popular and potentially dangerous extreme water sport.We hypothesized that kit......