a+b |
ab |
A.
| B.
| C.
| D.
|
a+b |
ab |
a |
ab |
b |
ab |
1 |
b |
1 |
a |
A.
| B.
| ||||||||||||
C.
| D.
|
1 |
1×3 |
1 |
2 |
1 |
3 |
1 |
3×5 |
1 |
2 |
1 |
3 |
1 |
5 |
1 |
5×7 |
1 |
2 |
1 |
5 |
1 |
7 |
1 |
2003×2005 |
1 |
2 |
1 |
2003 |
1 |
2005 |
1 |
1×3 |
1 |
3×5 |
1 |
5×7 |
1 |
2003×2005 |
1 |
2 |
1 |
3 |
1 |
3 |
1 |
5 |
1 |
5 |
1 |
7 |
1 |
2003 |
1 |
2005 |
1 |
1×3 |
1 |
3×5 |
1 |
5×7 |
1 |
x(x+2) |
1 |
(x+2)(x+4) |
1 |
(x+4)(x+6) |
1 |
(x+2004)(x+2006) |
a |
b |
b |
a |
a2+b2 |
ab |
A.0 | B.-
| C.-
| D.
|
x |
x-1 |
1 |
1-x |
1 |
2m-4 |
2 |
m2-4 |
© 2017-2019 超级试练试题库,All Rights Reserved.