1 |
3 |
1 |
2 |
A.-11 | B.11 | C.-l | D.1 |
1 |
3 |
1 |
2 |
1 |
3 |
1 |
2 |
|
|
A.{x|-1<x<3} | B.{x|x<-1或x>3} | C.{x|0<x<3} | D.{x|-1<x<0} |
A.f(5)<f(-1)<f(2) | B.f(2)<f(-1)<f(5) | C.f(-1)<f(2)<f(5) | D.f(5)<f(2)<f(-1) |
A.(-∞,1) | B.(2,+∞) | C.(-∞,1)∪(2,+∞) | D.(1,2) |
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