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With 10 pupils, respectively 56,69,84,82,73,88,99,63,100 and 80 minutes. The preparation of statistical test procedures were less than 60 points, 60 ~ 69 hours, 70 ~ 79 hours, 80 ~ 89 hours, 90 ~ 99 hours and 100 hours the number of storage to the s5, s6, s7, s8, s9 and s10 unit.