基金This work was supported by the National Natural Science Foundation of China (No. 30470565) and the Educational Commissionof Fujian Province of China (No. JB04230).
基金supported by the National Natural Science Foundation of China (No. 30970985)the Educational Commission of Fujian Province of China (No. JK2010014)the Excellent Youth Teacher Training Fund of Fujian Normal University,China (No. 2008100238)
基金supported by the National Natural Science Foundation of China(No.30070279)the Natural Science Foundation of Fujian Province,China(No.2014J01305)the Educational Commission of Fujian Province,China(No.JA14072)