lunes, 16 de febrero de 2009

my presentation: the greenhouse effect

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2 comentarios:

  1. dennise16 de febrero de 2009, 9:37

    well your presentation is good too. its better than the other, your investigation is very good and interesting.

    ResponderEliminar
  2. Unknown19 de febrero de 2009, 21:55

    Nice job!! Congratulations! keep up the excellent job!

    ResponderEliminar

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