A.{x|x<0} | B.{x|0<x<3} | C.{x|x>4} | D.R |
A.{3,4,5,6,7,8} | B.{3,6} |
C.{4,7} | D.{5,8} |
A.{(0,0)} | B.{(1,1)} | C.{(0,0),(1,1)} | D.{(0,1)} |
A.空集 | B.{x|x<1或x≥2} | C.{x|1≤x<2} | D.{x|1<x≤2} |
A.{1,2} | B.{1,0} | C.{0,3} | D.{3} |
A.M∩N | B.C∪N | C.M∪N | D.(C∪M)∩N |
© 2017-2019 超级试练试题库,All Rights Reserved.