| 1 |
| m |
| 1 |
| n |
| m+n |
| n |
| 1 |
| m |
| 1 |
| n |
| m+n |
| n |
| m+n |
| mn |
| n |
| m+n |
| 1 |
| m |
| a |
| a+1 |
| b |
| b+1 |
| a |
| a+1 |
| ab |
| (a+1)b |
| 1 |
| ab+b |
| 1 |
| b+1 |
| 1 |
| b+1 |
| b |
| b+1 |
| a |
| ab+a+1 |
| b |
| bc+b+1 |
| c |
| ca+c+1 |
| x |
| 6 |
| y |
| 4 |
| z |
| 3 |
| x2+3y2+2z2 |
| xy+yz+zx |
| 1 |
| a |
| 1 |
| b |
| 5 |
| a+b |
| b |
| a |
| a |
| b |
| 1 |
| a |
| 3 |
| x |
| 6 |
| 1-x |
| x+5 |
| x2-x |
| a2b |
| c |
| -c2 |
| ab |
| bc |
| a |
| x |
| x-y |
| y2 |
| x+y |
| x4y |
| x4-y4 |
| x2 |
| x2+y2 |
| a+2 |
| a2-2a |
| a-1 |
| a2-4a+4 |
| 4-a |
| a2-2a |
© 2017-2019 超级试练试题库,All Rights Reserved.