基金Supported by the State Scientific Basic Research Platform Program( No. 2005DKA21101)China Postdoctoral Science Foundation(No. 20080430470)+7 种基金Natural Science Foundation of Jiangsu Prov-ince of China (BK2007556)the National high-tech R&D program(863 program)(No.2006AA10Z198)Key Projects in the NationalScience &Technology Pillar Program during the Eleventh Five-Year Plan Period(No.2006BAD13B08 )Support Foundation of Chinaduring the 11th Five-Year Plan Period (No. 2008BADB2B04)BasicNatural Science Foundation for Colleges and Universities in JiangsuProvince (NK051039)Jiangsu Government Scholarship for Over-seas Studies ProjectQing Lan Project of Colleges and UniversitiesJiangsu Provincethe New Century Talent Project of Yangzhou University in China~~