2 |
x+1 |
A.(-1,1] | B.[-1,1) | C.(-1,1) | D.[-1,1] |
2 |
x+1 |
2 |
x+1 |
x-1 |
x+1 |
ax+g |
x-他 |
A.(-2,3) | B.(-∞,-2)∪(3,+∞) | C.(2,3) | D.(-∞,-3)∪(2,+∞) |
k(x-1) |
x-2 |
1 |
x-1 |
x-1 |
2x+4 |
A.(-2,1) | B.(-∞,1) | C.(-2,+∞) | D.(-∞,-2)∪(1,+∞) |
1 |
x |
A.0<x<
| B.x>
| C.x>
| D.x<0 |
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