1 | ||
|
a2b |
|
5 |
10 |
1 | ||
|
1 | ||
3
|
| ||
6 |
b |
| ||
2
|
b
| ||
2 |
3 |
2 |
|
3
| ||
4 |
| ||
6 |
b
| ||
2 |
3
| ||
4 |
18a |
2a |
3 |
|
14 |
35 |
5a |
10a |
12ab |
2 |
3 |
6b |
16-a2 |
4-a |
4+a |
A.-4≤a≤4 | B.a>-4 | C.a≤4 | D.-4<a<4 |
2 |
2 |
A.0 | B.1 | C.2 | D.3 |
-
|
A.
| B.
| C.-
| D.-
|
(4-x)2(6-x) |
6-x |
A.x≥4 | B.4≤x≤6 | C.x≥6 | D.x≤4或x≥6 |
© 2017-2019 超级试练试题库,All Rights Reserved.