7 60 80 80 50 60 60 65 50 65 90 90 90 70 60 80 65 40 61 80 80 80
1 60 80 80 74.0 2 50 60 60 57.0 3 65 50 65 60.5 4 90 90 90 90.0 5 70 60 80 71.0 6 65 40 61 55.9 7 80 80 80 80.0 优秀的学生有:4号,7号,