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ScienceDirect 有免费 Top 25 Hottest Article 证书哦
Elsevier’s WebShop partners with the ScienceDirect Team to offer FREE
digital certificates to all ScienceDirect Top25 ranked authors.
In recognition of the author community and its contribution to science.
http://webshop.elsevier.com/certificates/
斑竹发包子吧
Elsevier’s WebShop partners with the ScienceDirect Team to offer FREE
digital certificates to all ScienceDirect Top25 ranked authors.
In recognition of the author community and its contribution to science.
http://webshop.elsevier.com/certificates/
斑竹发包子吧