基金supported by the National Natural Science Foundation of China(21103005,21077007)the Natural Science Foundation of Beijing Municipality(KZ200610005004)+1 种基金the Discipline and Postgraduate Education Foundation(PXM2013_014204_07_000261 and 005000542513551)the Funding Project for Academic Human Resources Development in Institutions of Higher Learning under the Jurisdiction of Beijing Municipality(PHR201107104)~~
