基金The National Natural Science Foundation of China( No. 60925004, 60902009, 61001103)the National Science and Technology Major Project of China ( No. 2009ZX03003-005-02, 2009ZX03003-011-04,2011ZX03003-003-03) +1 种基金the Natural Science Foundation of Jiangsu Province of China ( No. BK2011019)the Natural Science Foundation of the Jiangsu Higher Education Institutions of China ( No. 10KJB510021)