1 . 若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3267d1ee6c0641eaedf024140122e3b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
A.2 | B.6 | C.2或6 | D.2或507 |
您最近一年使用:0次
名校
解题方法
2 . 血压差是指血压的收缩压减去舒张压的值.已知某校学生的血压差服从正态分布
,若
,则随机变量
的第90百分位数的估计值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/427f4428bbeff71360fed0ae1d68457d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3842bf6729f234510ff5a0bf64164017.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
A.42 | B.38 | C.36 | D.34 |
您最近一年使用:0次
2024-06-01更新
|
290次组卷
|
2卷引用:河南省高中创新联盟TOP二十名校2023-2024学年高二下学期5月调研测试数学试题
名校
3 . 已知函数
,则自变量x由1变到1.1时,
的平均变化率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f496911266e86ff15d128b01657838cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
A.0.21 | B.![]() | C.2.1 | D.![]() |
您最近一年使用:0次
2024-05-31更新
|
291次组卷
|
3卷引用:河南省郑州市十校2023-2024学年高二下学期期中联考数学试卷
名校
解题方法
4 . 已知双曲线
的左焦点为
,点
为双曲线的渐近线在第一象限上的一点,
为坐标原点,
,直线
交另一条渐近线于点
,且
为
的中点,则双曲线的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ec7fa23be9cbe9a50607ea6bc8a4ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd3ffbf075f33154d9601f5c4f545532.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7272356beb98a7953a49651324cb6455.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7272356beb98a7953a49651324cb6455.png)
A.![]() | B.2 | C.![]() | D.4 |
您最近一年使用:0次
名校
5 . 如图,在三棱锥
中,
为
的中点,
为
的中点,则线段
的长度为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cec90d1a1aab19cadcfb44812f942cdf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
6 . 若等差数列
的前
项和为
,对
,都有
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71b78297a65e7fad69635b19928ecc10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ffbbbabb2bf14a6de88340f9a092069.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
7 . 已知点
是圆
上一点,直线
交圆
于
两点,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3e36bb606fc84bf1f1251a3cb876b27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/560adea7b0d4fbe4131fc41f3fcbd871.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb2de83daa8e3367c3b2e6a3f493cfeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bce45bf68da797e64cf8234fac54a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7ff46fe09a2d868514e16706f96565f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baf4bb626270794de4e87e0675837db7.png)
A.0 | B.1 | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
8 . 已知随机变量
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53c1ed67167078ea4f5f1ee53ee14164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/285b2968f4f129919ac202d97a95bc02.png)
A.0.9 | B.0.2 | C.0.5 | D.0.4 |
您最近一年使用:0次
名校
9 . 已知等比数列
的首项为
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6979c97deaf6c32f9dccccc842deb90d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dbd9ff686703cad03aa383e5fec21.png)
A.3 | B.6 | C.18 | D.36 |
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解题方法
10 . 已知定义在
上的单调递增函数
满足
恒成立,其中
是函数
的导函数.若
,则实数
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f8ecc06d3052cee182ccd1e1a92ca33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa319de3fc07d36bdc60cc22119492ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次