基金the National Natural Science Foundation of China under Grant No.90412001 (国家自然科学基金)the National High-Tech Research and Development Plan of China under Grant No.2006AA02Z334 (国家高技术研究发展计划(863))the National Basic Research Program of China under Grant No.G2005CB321806 (国家重点基础研究发展计划(973))
