2 |
a |
3 |
b |
A.24 | B.25 | C.26 | D.27 |
2 |
a |
3 |
b |
2 |
a |
3 |
b |
b |
a |
a |
b |
b |
a |
a |
b |
b |
a |
a |
b |
|
2 |
a |
3 |
b |
2 |
a |
3 |
b |
1 |
a |
1 |
b |
A.a2<b2 | B.ab<b2 | C.
| D.|a|+|b|>|a+b| |
2 |
x |
1 |
y |
A.m≥4或m≤-2 | B.m≥2或m≤-4 | C.-4<m<2 | D.-2<m<4 |
1 |
ab |
1 |
a(a-b) |
A.2 | B.4 | C.2
| D.5 |
1 |
a |
4 |
b |
A.9 | B.8 | C.6 | D.4 |
1 |
a-1 |
A.2 | B.a | C.3 | D.
|
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