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en-N This user can read and write at a native level in English.
es-3 Este usuario puede contribuir con un nivel avanzado de espaƱol.
BS This user has graduated college with a Bachelor of Science degree.
MS This user has a Master of Science degree.
Black hole (NASA).jpg This user loves physics
N write.svg This user adds new content to Wikibooks.
SI This user uses the metric system of measurement.
NewTux.svg This user contributes using Linux.
Firefox This user contributes using
Mozilla Firefox.
BB This user is contributing using a broadband connection.
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