54岁的瑞典摄影家汉斯·斯特兰德在这只“渴望成名”的北极熊出来对着兴奋的游客摆姿势时，抢拍下了这一场景(见图)。
During a cruise through Svalbard in the Arctic, 54-year-old Swedish photographer Hans Strand snapped the fame-hungry bear as he came out to pose for the excited crowd (see photo).
本文借助于对“拉尼斯—费景汉模型”的扩展，分析了农业部门的技术进步偏向与劳动力调整这一关键性问题。
We expand the RanisFei model to analyze the critical issue between the agricultural technology tendency and the labor adjustment in the agricultural sector.
著名社会科学家李景汉搜集出版的《定县秧歌选》，收入了剧目近百个。
Collection of well-known social scientist Li Jinghan book "Ding County Yangge choose" the income of nearly a hundred operas.
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