如图,△ABC中,点D、E、F分别在AB、AC、BC上,DE∥BC,DF∥AC,下列比例式正确的是( )
![](https://img.xkw.com/dksih/QBM/2019/4/20/2186368208756736/2187345586610176/STEM/f28c78035d8a461a92d69a9dd7955b25.png?resizew=138)
![](https://img.xkw.com/dksih/QBM/2019/4/20/2186368208756736/2187345586610176/STEM/f28c78035d8a461a92d69a9dd7955b25.png?resizew=138)
A.![]() |
B.![]() |
C.![]() |
D.![]() |
更新时间:2019-04-22 23:01:31
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【知识点】 相似三角形的判定与性质综合
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单选题
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适中
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【推荐1】如图,
是
对角线
上一点,满足
,连接
并延长交
于点
,则
( )
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A.![]() | B.![]() | C.![]() | D.![]() |
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单选题
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适中
(0.65)
【推荐2】如图,
是
的外接圆,
是
的直径,D是
的中点,连接
交
于点E,连接
,且
,若
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的长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/14/6c670306-8ad9-4411-89ef-9a32cee6e95f.png?resizew=145)
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A.6 | B.![]() | C.![]() | D.![]() |
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