如图,在△ABC中,∠ACB=90°,AC=2,BC=1,点A、C分别在x轴、y轴上,当点A在x轴运动时,点C随之在y轴上运动,在运动过程中,点B到原点O的最大距离为
![](https://img.xkw.com/dksih/QBM/2013/6/3/1573660661686272/1573660666839040/STEM/8b82fdd643c24a67be14ea14094d767a.png)
![](https://img.xkw.com/dksih/QBM/2013/6/3/1573660661686272/1573660666839040/STEM/8b82fdd643c24a67be14ea14094d767a.png)
A.![]() | B.![]() | C.1+ ![]() | D.3 |
更新时间:2016-12-05 18:03:44
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单选题
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适中
(0.65)
【推荐1】如图,
为半圆O的直径,C为半圆弧上一动点,将弧
沿弦
折叠,折叠后的弧与
交于点D,E为折叠后的弧
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,若
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A.![]() |
B.![]() |
C.![]() |
D.点C、O、E共线时,CE的长最大 |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐2】
中,
,
,
,则以
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A.36 | B.27 | C.108 | D.144 |
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