200320022 |
200320012+200320032-2 |
200320022 |
200320012+200320032-2 |
200320022 |
20032000×20032002+20032002×20032004 |
200320022 |
20032002(20032000+20032004) |
200320022 |
20032002×20032002×2 |
1 |
2 |
1 |
2 |
1 |
4 |
1 |
2 |
A.81a4+
| B.81a4-
| ||||||||
C.81a4-
| D.81a4+
|
A.(x+2y)(2x-y) | B.(x+y)(x-2y) | C.(x+2y)(2y-x) | D.(x-2y)(2y-x) |
A.(-2y-1)(-2y+1) | B.(2y-1)2 | C.(4y-1)2 | D.(2y+1)(-2y+1) |
20002 |
1999×2001+1 |
A.a8-b8 | B.a6-b6 | C.b8-a8 | D.b6-a6 |
© 2017-2019 超级试练试题库,All Rights Reserved.