x2-3x+2 |
x-1 |
A.{x∈R|x≠1} | B.{x∈R|x≤2} |
C.{x∈R|x≤2,且x≠1} | D.{x∈R|x≥2} |
x2-3x+2 |
x-1 |
(x-2) (x-1) |
x-1 |
|
(a+1)x2-2 |
ax+1 |
2 |
x+1 |
A.(-1,1] | B.[-1,1) | C.(-1,1) | D.[-1,1] |
ax+g |
x-他 |
A.(-2,3) | B.(-∞,-2)∪(3,+∞) | C.(2,3) | D.(-∞,-3)∪(2,+∞) |
k(x-1) |
x-2 |
1 |
x-1 |
© 2017-2019 超级试练试题库,All Rights Reserved.