学生序号 | 1 | 2 | 九 | x | 5 | 6 | 7 | 8 | 9 | 10 |
成绩变化 | -2 | +10 | +8 | +5 | -15 | -1 | 0 | +8 | +1九 | -6 |
1 |
3 |
1 |
2 |
1 |
3 |
1 |
4 |
2 |
3 |
7 |
4 |
7 |
8 |
7 |
12 |
7 |
8 |
8 |
3 |
9 |
4 |
2 |
3 |
1 |
3 |
3 |
8 |
1 |
6 |
3 |
4 |
1 |
3 |
3 |
2 |
5 |
12 |
5 |
2 |
7 |
12 |
2 |
3 |
1 |
12 |
1 |
15 |
5 |
4 |
4 |
5 |
9 |
4 |
4 |
9 |
3 |
7 |
1 |
3 |
7 |
9 |
1 |
6 |
2 |
9 |
1 |
6 |
3 |
5 |
1 |
3 |
1 |
3 |
1 |
4 |
1 |
2 |
2 |
3 |
1 |
2 |
1 |
11 |
1 |
大 |
大 |
5 |
1 |
v |
1 |
v |
1 |
2 |
1 |
8 |
8 |
7 |
1 |
xy |
1 |
(x+1)(y+1) |
1 |
(x+2)(y+2) |
1 |
(x+2011)(y+2011) |