2x2-4 |
x2+3 |
A.(-∞,-
| B.[-
| ||||
C.(-∞,-
| D.[-
|
2x2-4 |
x2+3 |
2(x2+3)-10 |
x2+3 |
10 |
x2+3 |
10 |
x2+3 |
10 |
3 |
4 |
3 |
10 |
x2+3 |
4 |
3 |
x-1 |
x+1 |
A.[-1,0) | B.(-1,0] | C.(-1,0) | D.[-1,0] |
| ||
|x|-x |
A.[-a,a] | B.[-a,0]∪(0,a) | C.(0,a) | D.[-a,0) |
A.[1,4] | B.[0,4] | C.[-4,4] | D.[0,2] |
|
log2(x-2) |
© 2017-2019 超级试练试题库,All Rights Reserved.