̂ |
P |
̂ |
Q |
̂ |
P |
̂ |
Q |
̂ |
Q |
̂ |
P |
A.{0,3} | B.{1,2} | C.(3,4,5} | D.{1,2,6,7} |
̂ |
P |
̂ |
Q |
̂ |
P |
̂ |
Q |
̂ |
Q |
̂ |
P |
̂ |
P |
̂ |
Q |
̂ |
Q |
̂ |
P |
A.{x|x<-
| B.{x|-
| ||||
C.{x|x≤-
| D.{x|-
|
1 |
3 |
1 |
2 |
A.(-∞,-1) | B.[-1,1] | C.∅ | D.{1} |
x |
(x-1)3 |
A.∅ | B.{x|x≥1} | C.{x|x>1} | D.{x|x≥1或x<0} |
A.CUU=U | B.CU∅=U | C.CU(CUA)=A | D.CAA=∅ |
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