a |
6 |
|
|
1 |
2 |
1 |
3 |
1 |
2 |
1 |
3 |
a |
6 |
1 |
12 |
25 |
24 |
1 |
12 |
25 |
24 |
a |
6 |
25 |
24 |
a |
6 |
25 |
4 |
25 |
4 |
A.(2,3) | B.(-3,2) | C.(-3,-2) | D.(-∞,2)U(3,+∞) |
A.{x|-1<x<2} | B.{x|x<-1或x>2} | C.{x|1<x<2} | D.{x|-2<x<1} |
A.{x|x≤-1或x≥5} | B.{x|x<-1或x>5} | C.{x|-1<x<5} | D.{x|-1≤x≤5} |
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