CAD previously studied, how can we forget to retrieve quickly?

CAD previously studied, how can we forget to retrieve it quickly?

I have already forgotten a lot, as long as you open the software, Familiar with every feature, click on the drawing, one by one with a straight line…….Round like you to ask this question as if the CAD knowledge and has nothing to do Oh, just what subjects are the same, would like to retrieve the only Is to re-learn! Order to memorize this is not good, to look for work,
package you click on the study,
because you do not want to make a fool of oneself at work.,
The school soon