a |
2 |
1 |
ab |
1 |
(a-1)(b-1) |
1 |
(a-2)(b-2) |
1 |
(a-2012)(b-2012) |
a |
2 |
-2 |
2 |
1 |
ab |
1 |
(a-1)(b-1) |
1 |
(a-2)(b-2) |
1 |
(a-2012)(b-2012) |
1 |
(-2)×(-1) |
1 |
(-3)×(-2) |
1 |
(-4)×(-3) |
1 |
(-2014)×(-2013) |
1 |
2 |
1 |
2 |
1 |
3 |
1 |
3 |
1 |
4 |
1 |
2013 |
1 |
2014 |
1 |
2014 |
2013 |
2014 |
4 |
7 |
A.27 | B.3或-1 | C.25或-1 | D.-1或27 |
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