Don't think too hard for too long - you won't get any more done. http://www.johndcook.com/blog/2013/02/04/four-hours-of-concentration/ …
@ErikBernskiold Exams are not about assessment and evaluation. They are about adaptation and survival. :)
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@DaveHogue True enough! ;)Thanks. Twitter will use this to make your timeline better. UndoUndo
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