专题一 集合
1.若集合??x?5?x?2,??x?3?x?3,则????( )
A.x?3?x?2B.x?5?x?2
C.x?3?x?3D.x?5?x?3
2. 若集合M={x|(x+4)(x+1)=0},N={x|(x-4)(x-1)=0},则M?N=
A.?B.??1,?4?C.?0?D.?1,4?
3. 若集合????1,1?,????2,1,0?,则????( )
A.?0,?1? B.?0?C.?1?D.??1,1?
5.设全集U??1,,,,,23456?,A??1,2?,B??2,,34?,则A??CUB??( )
(A)?1,,,256?(B)?1?(C)?2?(D)?1,,,234?
6.若集合M?x?2?x?2,N??0,1,2?,则M?N等于( )
A.?0?B.?1?C.?0,1,2? D?0,1?
7. 已知集合A={x|x=3n+2n,n?N},b={6,8,12,14},则集合A?中元素的个数为( )
A 5B4C 3 D2
8. 已知集合A={-2,-1,0,1,2},B={x|(X-1)(x+2)<0},则A∩B=()
(A){--1,0}(B){0,1} (C){-1,0,1}(D){,0,,1,2}
9. 已知集合A??x|?1?x?2?,B??x|0?x?3?,则A?B?( )
A.??1,3? B.??1,0? C.?0,2? D.?2,3?
210. 设集合M?{x|x?x},N?{x|lgx?0},则M?N?( ) ??????????????
A.[0,1] B.(0,1] C.[0,1) D.(??,1]
211.集合M?{x|x?x},N?{x|lgx?0},则M?N?( )
A.[0,1]B.(0,1]C.[0,1) D.(??,1]
12. 已知全集U??1,2,3,4,5,6,7,8? ,集合A??2,3,5,6? ,集合B??1,3,4,6,7? ,则集合A?eUB?
(A)?2,5? (B)?3,6? (C)?2,5,6? (D)?2,3,5,6,8?
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