基金Projects(50871050,50961009)supported by the National Natural Science Foundation of ChinaProjects(2010ZD05,2011ZD10)supported by Natural Science Foundation of Inner Mongolia,ChinaProject(NJzy08071)supported by High Education Science Research Project of Inner Mongolia,China
基金Supported by National Natural Science Foundations of China (50871050)Natural Science Foundation of Inner Mongolia, China (200711020703)High Education Science Research Project of Inner Mongolia, China (NJzy08071)