甘肃兰州市第五十一中学2026-2027学年高一上学期期中数学试卷

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兰州五十一中2026~2027学年第一学期期中试卷

高一 数学

第Ⅰ卷(58分)

一.单选题(本大题共8小题,每小题5分,共40分.在每小题给出的四个选项中,只有一项符合题目要求.)

1.已知集合,,则(     )

A. B.

C. D.

2.已知实数,,,满足,,则一定成立的是(     )

A. B.

C. D.

3.命题“,”的否定是(     )

A., B.,

C., D.,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

4.已知,则的最小值为(     )

A.  B.

C.  D.

5.下列各组函数是同一个函数的是(     )

A.与 B.与

C.与 D.与

6.已知:,:,若是的充分不必要条件,则实数的取值范围是(     )

A. B.

C. D.

7.若奇函数和偶函数满足,则(     )

A.  B.

C.  D.page number 0

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