甘肃天水市麦积区2026-2027学年八年级上学期11月期中数学试题

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2026-2027学年度第一学期质量监测
八年级 数学

一、选择题:(本大题10小题,每题3分,共30分)

1.下列运算正确的是(     )

A.  B.  C.  D.

2.下列式子正确的是(     )

A.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    B.

C.    D.

3.在实数,,,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,,,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…中,无理数的个数是(     )

A.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   B.   C.   D.

4.下列从左边到右边的变形,属于因式分解的是(     )

A.   B.

C.  D.

5.已知:,,则的值为:(     )

A.   B.   C.  D.

6.计算结果是(     )

A.  B.  C.  D.

7.长方形中,横向阴影部分是长方形,另一部分是平行四边形,依照图中标注的数据,图中空白部分的面积为(     )

A.    B.

C.    D.

8.已知,则的值是(     )

A.   B.   C.   D.

9.下列命题是真命题的是(     )

A.相等的角一定是对顶角   B.垂直于同一条直线的两条直线平行page number 0

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