作者机构:[1]Shandong University of Finance and Economics, Shandong, China
相关基金:Acknowledgement: This research is funded by the National Planning Office of Philosophy and Social Science of China (Reference 14CWW022), and by the China Postdoctoral Science Foundation (Reference 2014M552063).
JIA Yan-yan, M.A., lecturer, School of Foreign Language Education, Shandong University of Finance and Economics.
CHEN Hou-liang, Ph.D., associate professor, School of-Foreign Languages and Literature, Shandong University of Finance and Economics.