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12167553 
Journal Article 
Retraction Note: Active components of mountain soil based on clustering algorithm and evaluation of Internet English teaching 
Shi, R; Cui, R 
2021 
Yes 
Arabian Journal of Geosciences
ISSN: 1866-7511 
14 
23 
is retraction of 11921340 Active components of mountain soil based on clustering algorithm and evaluation of Internet English teaching