1 . 如图,圆柱的轴截面
是边长为2的正方形,
为圆柱底面圆弧
的两个三等分点,
为圆柱的母线,点
分别为线段
上的动点,经过点
的平面
与线段
交于点
,以下结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92f8accdb21a85e7251360bdb6b6953a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed41d321f4c0717ac5b443aad942d9a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8856a6bbd1648fef7aaa384366e9016f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ff29e8c1d123c806132f9b8d8c4e13f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e8ec66d29e434a5eb44f03c58683354.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/29/97d0f312-b1db-4766-93ae-c91aaf8282ae.png?resizew=144)
A.![]() |
B.若点![]() ![]() ![]() |
C.若平面![]() ![]() ![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() ![]() |
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2 . 在棱长为2的正方体
中,
为
的中点,
点在线段
上,且满足
,其中
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c597ff77c65c5add6f50294e3eee9536.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91ff067a03dd7a7d1f0c8a8478e87be4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee72261f6901e62dfd0ffe547406544.png)
A.以![]() ![]() ![]() ![]() |
B.若直线![]() ![]() ![]() ![]() |
C.当![]() ![]() ![]() |
D.过![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次