1 . 若函数
的值域为
,则实数
的可能值共有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/752d6d12bde90870e02798c156a3d909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa9f1bc82ddd76ee21883e394fd06589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.1个 | B.2个 | C.3个 | D.4个 |
您最近一年使用:0次
2 . 已知集合
,
,则
的真子集的个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07d65de53c9d28ca43cd868a96d38c39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a28c78ab14060668ff21ced6d2839814.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59d0acbfdb43bd9dce60e7826e228079.png)
A.8 | B.7 | C.4 | D.3 |
您最近一年使用:0次
3 . 张遂(僧一行,公元
年),中国唐代著名的天文学家.他发明了一种内插法近似计算原理,广泛应用于现代建设工程费用估算.近似计算公式如下:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c3e7d580bbefc5cdf91931476ae0eca.png)
,其中
为计费额的区间,
,
为对应于
的收费基价,
为该区间内的插入值,
为对应于
的收费基价.如下表所示.则
的值估计为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b82972d937117c4f27664915c60573a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c3e7d580bbefc5cdf91931476ae0eca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e4978561aae63ce5254c8e3e421c12d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/351629c193354cdcf202133052e45028.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc9769116ec47353514e6b7fb7b17216.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/542893790445d6d888d9ff91fd215c9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
计费额x(单位:万元) | 500 | 700 | 1000 |
收费基价 | 16.5 | 30.1 |
A.18.53 | B.19.22 | C.21.94 | D.28.22 |
您最近一年使用:0次
4 . 已知函数
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29b411211c5cf200259329d60043a963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dab87f374d5a5d5859059dfa5582570.png)
A.0 | B.1 | C.2024 | D.2025 |
您最近一年使用:0次
解题方法
5 . 设函数
,则使得
成立的
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/187f4e1437153b87206df2a1d4ed07a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e30b38d3c202faebc1cefd4d65c7dfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
6 . 命题
,则
为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fb53871dcb900286b7750556336f1a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffc1bb9d53a27d484396ad74d6a26e0.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
解题方法
7 . 已知
,则它们的大小关系为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51e8e103580760c059bdaf29432f26aa.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
8 . 已知集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/647bb9cd0159628faf3315bca1261cf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
9 . 设函数
,若函数
在
上恰有3个零点,则正实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46b954f9941104d432f475c8ffe482f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c459c5d37f30210330dbeaf49f5662f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f55cfcbb5c5950e18a8452b38bb17036.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
10 . 已知幂函数
的图象过点
,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed8f86bc1334b82a793f854c5412a2d4.png)
A.![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() |
您最近一年使用:0次