A.1.-2 B.-1.2 C.-2.1 D.2.-1 查看更多

 

题目列表(包括答案和解析)

已知集合

[  ]
A.

(-∞,2)

B.

(1,2)

C.

(2,5)

D.

(-∞,5)

查看答案和解析>>

(      )
A.{-1,2}B.(-1,2)
C.{(-1,2)}D.{(x,y)|x= -1或y=2}

查看答案和解析>>

,则
[     ]
A.{1,2}
B.{0,1}
C.{0,3}
D.{3}

查看答案和解析>>

设集合=                                               

A.{1,3}                                                      B.{1,2,3,4}

C.{1,3,5,7}                                           D.{1,2,3,4,5,7}

查看答案和解析>>

(      )

A.{-1,2}B.(-1,2)
C.{(-1,2)}D.{(x,y)|x= -1或y=2}

查看答案和解析>>


同步练习册答案