1 . 设直线
与曲线
相切于点
,过
且垂直于
的直线分别交
轴,
轴于点
,
,并记点
.下列命题中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc5bd66dd6d5e09ff0893a938aed56e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9893e251abecb144aef9795fddc4854.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/0f85fca60a11e1af2bf50138d0e3fe62.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/98ec3d75e53b990bc8f9a4622928dd21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/802156c7f020914ad709eb928d05f833.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d6f5adf13b4214666292dd64b947741.png)
A.![]() |
B.![]() ![]() ![]() |
C.存在定点![]() ![]() |
D.存在定点![]() ![]() |
您最近一年使用:0次
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解题方法
2 . 如图,已知正方体
的棱长为2,点
,
在平面
内,若
,
,则下述结论正确的是( )
![](https://img.xkw.com/dksih/QBM/2021/12/19/2875990558048256/2879601807908864/STEM/842087a9-7bdc-448f-9ae5-f121f5e174d6.png?resizew=206)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/600c2b2a205cc72c31bdda134bc60501.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5621c78ba894e47b6161e27a664093a0.png)
![](https://img.xkw.com/dksih/QBM/2021/12/19/2875990558048256/2879601807908864/STEM/842087a9-7bdc-448f-9ae5-f121f5e174d6.png?resizew=206)
A.点![]() | B.点![]() |
C.![]() ![]() | D.直线![]() ![]() ![]() |
您最近一年使用:0次
2021-12-24更新
|
824次组卷
|
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