2022年巴中市零诊考试理科数学参考答案(20220904定稿)
理科数学答案第1页共11页巴中市普通高中2020级“零诊”考试数学阅卷参考答案(理科)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,只有一个是符合题目要求的.1.【解析】B.先写出集合M,然后逐项验证即可.由{1,2,3,4,5}U且{1,2}UMð得{3,4,5}M,故选B.备注:2022年全国乙卷理数第1题改编.2.【解析】D.利用复数四则运算,先求出z,再依照复数的概念求出复数z的虚部.选D.方法一:由题意有(34i)(i)34i43iii(i)z,故复数z的虚部为3.方法二:由i34ii(3i4)z,得43iz...
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