2020届甘肃省兰州市2017级高三诊断考试数学(理)试卷及解析
发布时间:2023-02-09 02:29:09
2020届甘肃省兰州市2017级高三诊断考试数学(理)试卷★祝考试顺利★第Ⅰ卷一、选择题:本大题共12小题,每小题5分,共60分在每小题给出的四个选项中,只有项是符合题目要求的*1.已知集合A>>>>0,1,2,3,4,5,Bxx2n,nN,则AIB()A.0,2,4B.2,4C.1,3,5D.1,2,3,4,5【答案】B【分析】根据交集定义求解.*【详解】因为集合A>>>>0,1,2,3,4,5,Bxx2n,nN,所以AB{2,4},故选:B.2.>>>>已知复数zA.5>>>>>【答案】B【解析】【分析】首先进行除法运算化简z,再求模即可.>>>>>>>>【详解】因为z故选:Brrrrrrrr>>>>>>>>>>>>>>>>>>>>>>>>3.已知非零向量a,b给定p:R,使得a=λb,q:abab,则p是q的5i5i(2i