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1 |
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1 |
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1 |
x |
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A..(-∞,2) | B..(2,+∞) | C..(0,2) | D.(-∞,0)∪(2,+∞) |
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A.{x|x<1} | B.{x|x<-1或x>1} |
C.{x|-1<x<1} | D.{x|-1<x<0或x>1} |
A.{
| B.{x|-2≤x<
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C.{x|-
| D.{x|-
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A.[-1,1] | B.[-1,0]∪[1,+∞] | C.(1,+∞)∪(-∞,-1) | D.(0,1)∪(-∞,-1) |
A.(-∞,-
| B.R | C.(
| D.∅ |
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