x-3 |
x |
x-3 |
x |
A.(0,3) | B.(-∞,0) | C.(3,+∞) | D.(-∞,0)∪(0,+∞) |
x-3 |
x |
x-3 |
x |
x-3 |
x |
A.{x|-1≤x≤1} | B.{x|-2≤x≤2} | C.{x|0≤x≤2} | D.{x|-2≤x≤0} |
A.8 | B.2 | C.-4 | D.-8 |
1 |
x |
1 |
3 |
A.{x|-
| B.{x|x>
| ||||||||
C.{x|x>
| D.{x|x<-
|
A.x>2 | B.x≥±2 | C.-2<x<2 | D.x>2或x<-2 |
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