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已知ZA={xZ|x<6},ZB={xZ|x≤2},则AB的关系是

A.AB                                                          B.AB

C.A=B                                                            D.ZAZB

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已知全集S和集合M、N、P,M=SN,NSP,则MP的关系是

A.M=SP                                                       B.M=P

C.PM                                                         D.MP

 

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设全集U={1,2,3},M={x|x2-3x+2=0},则UM等于

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

C.{3}                                                                     D.{2}

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给出下列命题:

UA={x|xA};

U=U;

③若S={三角形},A={钝角三角形},则SA={锐角三角形};

④若U={1,2,3},A={2,3,4},则UA={1}.

其中正确命题的序号是__________.

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已知全集U={a,1,3,b,x2-2=0},集合A={a,b},则UA=__________.

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已知全集U={0,1,2}且UA={2},则集合A的真子集共有

A.3个                                                                  B.4个   

C.5个                                                                  D.6个

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已知集合A是全集U的任一子集,则必有

A.  UA                                                      B. UAU

C. U(UA)=A                                                     D. =UA

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设全集U=R,集合A={x|x+1>0},则UA

A.{x|x<-1}                                                           B.{x|x≤-1}

C.{x|x>-1}                                                           D.{x|x≥-1}

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已知全集U={1,2,3,4,5},A={1,2},B={1,2,3},则UAUB的关系为

A. UA UB                                                    B. UA=UB

C. UAUB                                                      D. UAUB

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已知A={0,2,4,6},SA={-1,-3,1,3},SB={-1,0,2},用列举法写出集合B.?

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