基金Acknowledgements The work was supported by the National Natural Science Foundation of China (Nos. 51432002, 50121091, 51290272, and 51222201), the National Basic Research Program of China (Nos. 2013CB932603, 2012CB933404, 2011CB933003, 2011CB921903, and 2012CB921404), and the Ministry of Education (No. 20120001130010).
基金Acknowledgements This work was financially supported by the National Basic Research Program of China (Nos. 2013CB932603, 2012CB933404, 2011CB921903, and 2013CB934600), the National Natural Science Foundation of China (Nos. 51432002, 51290272, 51121091, 51~201, and 11222434), the Ministry of Education (No. 20120001130010) and the Beijing Municipal Sdence and Technology Planning Project (No. Z151100003315013).
基金Acknowledgements This work was financially supported by the National Natural Science Foundation of China (Nos. 51222201, 51290272, 51472008, and 51432002), the National Basic Research Program of China (Nos. 2012CB921404, 2013CB932603, 2012CB933404, and 2011CB921903), and the Foundation for Innovative Research Groups of the National Natural Science Foundation of China (No. 51121091).