The test results, find the performance of a series of tutorials is met. By various devices works 100%, the experts found that the assessment of three sets of tutorials created structural and equipment has a very good level (= 4.5) functionality has a very good level (= 4.6), side blade there is a very good level of content (= 4.5) average total 3 average side in a very good level (= 4.5)
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