1 |
2 |
1 |
3 |
1 |
2 |
1 |
3 |
y |
x-y |
x |
y-x |
1 |
√x-3 |
k |
x |
1 |
3 |
x-3 |
x2-1 |
x2+2x+1 |
x-3 |
1 |
x-1 |
1 |
4 |
成绩 | 3′40″及以下 | 3′41~4′ | 4′01″~4′20′ | 4′21″~4′40″ | 4′41″及以上 |
等级 | A | B | C | D | E |
百分比 | 10% | 25% | m | 20% | n |
1 |
x |
x | … | -4 | -3 | -2 | -1 | -
| -
| -
|
|
|
| 1 | 2 | 3 | 4 | … | ||||||||||||||||||||||||
y | … | -4
| -3
| -2
| -2 | -2
| -3
| -4
| 4
| 3
| 2
| 2 | 2
| 3
| 4
| … |
1 |
x |
DC |
EB |
DC |
EB |
DC |
EB |
DC |
EB |
DC |
EB |