2023届山西省高考考前适应性测试(3月)一模丨数学答案
秘密★启用前数学试题答案第1页(共10页)评分说明:1.考生如按其他方法或步骤解答,正确的,同样给分;有错的,根据错误的性质,参照评分说明中相应的规定评分。2.计算题只有最后答案而无演算过程的,不给分;只写出一般公式但未能与试题所给的具体条件联系的,不给分。A卷选择题答案一、单项选择题:本题共8小题,每小题5分,共40分。在每小题给出的四个选项中,只有一项是符合题目要求的。1.A【解析】化简得A={}x|x≥3,或x≤-1,B={-2,-1,0,1,2},∴A∩B={-2,-1}.2.C【解析】令z=a+bi,a,b∈R.∵z+-z=2,∴a=1,z=1+bi,∵||||||||1z=22,∴...
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