Li, Feng-Jun
Funding for this research was provided by:
Major Innovation Projects for Building First- calss Universities in China’s Western Region (ZKZD2017009)
Article History
Received: 28 February 2018
Accepted: 30 May 2018
First Online: 9 June 2018
Compliance with ethical standards
:
: I declare that I have no financial and personal relationships with other people or organizations that can inappropriately influence my work; there is no professional or other personal interest of any nature or kind in any product, service and/or company that could be construed as influencing the position presented in, or the review of, the manuscript entitled.