x |
2-x |
1 |
2013 |
2 |
2013 |
3 |
2013 |
4025 |
2013 |
x |
2-x |
t |
2-t |
2-t |
t |
t |
2-t |
2-t |
t |
1 |
2013 |
4025 |
2013 |
2 |
2013 |
4024 |
2013 |
4025 |
2013 |
1 |
2013 |
1 |
2013 |
2 |
2013 |
3 |
2013 |
4025 |
2013 |
4025 |
2013 |
4024 |
2013 |
1 |
2013 |
|
A.
| B.
| C.
| D.1 |
A.R | B.(1,+∞) | C.[1,+∞) | D.(0,+∞) |
A.(-3,-1) | B.(-1,0) | C.(1,2) | D.(3,6) |
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