Publisher: 国家哲学社会科学学术期刊数据库
E-ISSN: 1006-9372|26|2|77-81
ISSN: 1006-9372
Source: 中国地质教育, Vol.26, Iss.2, 2017-01, pp. : 77-81
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
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