12.
请评估以下各类音乐对您整体学习专注力的影响 (Rate how each type of background music affects your overall study concentration)
Scale: 1=Significantly reduce大幅度削弱
2=Slightly reduce concentration轻微削弱
3=No effect 无影响
4=Slightly improves concentration轻微促进
5=Sigmificantly improve大幅促进