基金国家重点基础研究发展规划(973)( the National Grand Fundamental Research 973 Program of China under Grant No.2003CB314802)国家高技术研究发展计划( 863)(the National High-Tech Research and Development Plan of China under Grant No.2006AA01Z23)国家自然科学基金( the National Natural Science Foundation of China under Grant No.60673169)