如图,在梯形
中,
分别在线段
上,且线段
与线段
的长度相等,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74ddbff2f56ecfd3c1ba30aa99909813.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea77ba313fcc751481ac1ca214df3fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
A.![]() ![]() | B.![]() |
C.![]() ![]() | D.![]() ![]() |
更新时间:2024-05-25 12:46:41
|
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适中
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【推荐1】已知抛物线
:
的焦点为
,
为坐标原点,动点
在
上,若定点
满足
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14d977e5d0854905f7bbe2a74c9b2e6a.png)
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A.![]() ![]() | B.![]() |
C.四边形![]() | D.![]() ![]() |
您最近一年使用:0次
多选题
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适中
(0.65)
名校
【推荐2】过抛物线
的焦点F作直线l交抛物线C于A,B两点,O为坐标原点,则下列选项正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c1ba86ffc6e5542b62319848c14acaa.png)
A.![]() ![]() | B.![]() |
C.若![]() ![]() | D.过点B作直线m,使得直线m与抛物线C有且仅有一个公共点,则这样的直线m有2条. |
您最近一年使用:0次
多选题
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适中
(0.65)
名校
【推荐3】若直线
与函数
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,
,已知点
,
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满足
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8499dbc3af38c3e56b8b0f0927949fdf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9160c95598c14f8a1d2f4efa09157cb.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36044989f21fffda971cdb6fc8f03f90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/518dfce0a9aab04171383586c5077146.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1e2147da43fa26c44e38465166e443e.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次