2023届湖南省永州市高三第二次适应性考试(二模)数学试题
永州市2023年高考第二次适应性考试试卷数学注意事项:1.本试卷共150分,考试时量120分钟.2.全部答案在答题卡上完成,答在本试题卷上无效.3.考试结束后,只交答题卡.一选择题: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.已知集合,则集合()A.B.C.D.2.已知为虚数单位,复数满足,则在复平面内复数对应的点在()A.第四象限B.第三象限C.第二象限D.第一象限3.“是锐角”是“”的()A.充分不必要条件B.必要不充分条件C.充要条件D.既不充分也不必要条件4.设为所在平面内一点,,则()A.B.C.D.5.若存在常数,使得函数对定义域内...
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