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<p class="MsoNormal"><span style="font-family:"Courier New"">Dear all, <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New"">So what is the difference between the pre and post check? When should I use what?
<br>
<br>
Thank you!<br>
Henrik<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New";mso-fareast-language:DE">--
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New";mso-fareast-language:DE">Dipl.-Math. Henrik Büsing<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New";mso-fareast-language:DE">Institute for Applied Geophysics and Geothermal Energy<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New";mso-fareast-language:DE">E.ON Energy Research Center<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New";mso-fareast-language:DE">RWTH Aachen University<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New";mso-fareast-language:DE">------------------------------------------------------<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New";mso-fareast-language:DE">Mathieustr. 10            |    Tel +49 (0)241 80 49907<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New";mso-fareast-language:DE">52074 Aachen, Germany     |    Fax +49 (0)241 80 49889<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New";mso-fareast-language:DE">------------------------------------------------------<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New";mso-fareast-language:DE">http://www.eonerc.rwth-aachen.de/GGE<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New";mso-fareast-language:DE">hbuesing@eonerc.rwth-aachen.de<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New";mso-fareast-language:DE">------------------------------------------------------<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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