名校
1 . 已知函数
若
,且
,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daeb462fc3e5427f9687bff7142323d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1310a7a80d1f8751a3f8cafe7f8c8b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2e45e961dd36b8f85703c91f248da3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d20c3dafde4449a064998a6e8a2bae.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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解题方法
2 . 设函数
的定义域为R,满足
,且当
时,
,若对任意
,都有
,则m的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cebfc4f151436fcdc84df9edbd789320.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcac1e85463a3177f487d896b3d1d24c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e78e89bf3b88c415496c232017f33196.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58640a13608e28bdba923ce9b0fc2f83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63181f6f8fb4904131e9f213f42960a7.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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3 . 直线
的倾斜角为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd680a4a7378e9dce886d30e810f6523.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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4 . 若对圆
上任意一点
,
的取值与
、
无关,则实数
的取值可以是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f240cccaf24af8a796abb95cb42be52e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc3ec0fca959b264c97d150be4219abd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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解题方法
5 . 已知
,则它们的距离为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f916d5c39e0088a1f5d681f0a4471e8f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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6 . 已知线段
的端点B的坐标是
,端点A在抛物线
上运动,则线段
的中点
的轨迹为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80991c1f0c963104740e50cfff6f29a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/344ccbf79da6ad7e3709d6fa72efb756.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
A.直线 | B.抛物线 | C.双曲线 | D.椭圆 |
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7 . 已知集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724bda54ac2813cf56fdb076e8f7a074.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
8 . 已知a、b都是实数,则“
”是“
”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25d60a700a5a306f650c0bb85c07d0fb.png)
A.充分不必要条件 | B.必要不充分条件 | C.充分必要条件 | D.既不充分又不必要条件 |
您最近一年使用:0次
名校
9 . 已知命题
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d209c33150814f3946897437f473ba08.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
10 . 函数
的定义域为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4d3feceaeb3d886b1f4396bf2c2b9b0.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次