Author:
Evaluation:
Published: 03.10.2007.
Language: German
Level: Secondary school
Literature: n/a
References: Not used
  • Presentations 'Gesundheit', 1.
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Extract

Charles Gerb, der Wisenschaftler von Arizona, USA hat erforscht, dass Computermaus und Tastatur hat 400 Mal mehr Mikrobe als Klosett…

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