two examples of diffusion question 6

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two examples of diffusion question 6

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Post dates Users rates Contents
2014-07-08 ioanap 85.00 Check this speaking
2013-01-29 Vanan 97.50 Check this speaking
2014-01-09 nishith 83.33 Check this speaking
2012-11-14 Agata 75.00 Check this speaking
2013-02-18 Vanan 93.33 Check this speaking
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