Publisher： 国家哲学社会科学学术期刊数据库

E-ISSN： 1671-6558|16|2|69-72

ISSN： 1671-6558

Source： 北京工业职业技术学院学报, Vol.16, Iss.2, 2017-01, pp. : 69-72

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

Previous Menu Next