2023届辽宁省葫芦岛市高考一模数学【公众号:一枚试卷君】
【公众号:一枚试卷君】2023年葫芦岛市普通高中高三年级第一次模拟考试数学第I卷(选择题,共60分)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()A.B.C.D.2.是虚数单位,则的值为()A.13B.C.5D.3.若a,b,c为实数,且,则下列不等关系一定成立的是()A.B.C.D.4.已知,为平面向量,,,则,夹角的余弦值等于()A.B.C.D.5.芙萨克·牛顿,英国皇家学会会长,英国著名的物理学家,著有《自燃哲学的数学原理》、《光学》为太昍中心说提供了强有力的理论支持,推动了科学革命.牛顿曾经提出了常温环境下的...
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