)Р A. B. C.{2} D.{x|}Р二.填空题(4分*8=32分)Р11.设集合P={1,2,3,4},,则_______Р12.已知集合A={1,2,3,4},集合B={-1,2,5,7},则________Р13.已知集合A={1,2,3},集合B={-2,2},则_________________Р14.若集合A={x|},B={x|x>2},则_____________Р15.已知集合,则_____________Р16.已知集合U={1,3,5,7},A={1,5},则_____________Р17.已知全集U={1,2,3,4,5},且A={2,3,4},B={1,2}则___Р18.集合A={0,a},B={1,},若,则a=________Р三.解答题(共6题,共计38分)Р19.(8分)集合A满足条件A {a , b , c },试写出所有这样的集合A 。Р20.(6分)已知全U={1,2,3,4,5,6,7,8},A={3,4,5},B={4,7,8}.求, .Р21.(6分)已知集合,求.Р22.(6分)已知全集I=R,集合,求Р23.(6分)设全集,,, 求a的值.Р24.(6分)设集合,,且,求实数a组成的集合M.Р第一章《集合》参考答案Р选择题(本大题共10小题,每小题3分,共30分)Р题号Р1Р2Р3Р4Р5Р6Р7Р8Р9Р10Р答案РDРBРBРAРBРCРAРDРCРBР填空题(共8小题,每题4分,共32分)Р{1,2}; 12.{-1,1,2,3,4,5,7}; 13.{2}; 14.; Р{2}; 16.{3,7}; 17.{3,4}; 18. 2;Р填空题(共6小题,38分)Р、{a}、{b}、{c}、{a,b}、{a,c}、{b,c}、{a,b,c};Р;;;Р(1,4);(0,7) Р Р 2Р24. {0,1,2}