x-1 |
x+2 |
x-1 |
x+2 |
|
|
A.CuA∪CuB | B.Cu(A∪B) | C.Cu(A∩B) | D.(A∪B)∩Cu(A∩B) |
A.A∩(CuB) | B.B∩(CuA) | C.Cu(A∩B) | D.(A∪B)∩Cu(A∩B) |
1 | ||
|
A.{x|x>-2} | B.{x|x<2} | C.{x|-2<x<2} | D.以上都不对 |
|
A.2个 | B.3个 | C.4个 | D.5个 |
A.{0,1,2} | B.{0,1,3} | C.{0,2,3} | D.{1,2,3} |
© 2017-2019 超级试练试题库,All Rights Reserved.