The authors have disco vered that the average value of certain feelings for boy students is 0.72+0.07 through questionnaire investigation for 340 students,which means that the value of uncertain feelings is 0.21 out of 3.1 times.

• 通过对 3 4 0名学生的问卷调查 ,了解到男生的确定性感受平均值是 0 72 + 0 0 7j,是不确定性感受值 0 2 1的 3 1倍 ;