高三模拟考试(一)文科数学试题
西安中学高2024届高三模拟考试(一)数学学科(文科)(满分:150分时间:120分钟)命题人:王晓溪一、单选题:本题共12小题,每小题5分,共60分。在每小题给出的选项中,只有一项是符合题目要求的。1.若,则()A.−1B.0C.1D.22.在用反证法证明“已知,则中至多有一个大于0”时,假设应为()A.x,y都小于0B.x,y至少有一个大于0C.x,y都大于0D.x,y至少有一个小于3.如图1的矩形长为5、宽为2,在矩形内随机地撒300颗黄豆,数得落在阴影部分的黄豆数为138颗,则我们可以估出阴影部分的面积为()A.B.C.10D.不能估计4.与双曲线的焦点相同,且长轴长为4❑√3的椭圆的...
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