It gives an overall score and sub-scores on efficiency, affect, helpfulness, control and learnability.
该问卷对系统的效率、影响力,友好度,可控性和可学习性给于总分和小分。
2
A tiny island nation in the Indian Ocean to the east of Madagascar, Mauritius is far and away the highest-ranking nation of Sub-Saharan Africa; Djibouti comes second with a score of 60.5.