题型:单选题
难度:0.65
引用次数:836
题号:7528754
如图,线段AB=10cm,点C为线段AB上一点,BC=3cm,点D,E分别为AC和AB的中点,则线段DE的长为( )
![](https://img.xkw.com/dksih/QBM/2019/1/24/2125617179320320/2127802660478976/STEM/7c04352eb7f94d90b0c9ed3c63a0a3d4.png?resizew=192)
![](https://img.xkw.com/dksih/QBM/2019/1/24/2125617179320320/2127802660478976/STEM/7c04352eb7f94d90b0c9ed3c63a0a3d4.png?resizew=192)
A.![]() | B.1 | C.![]() | D.2 |
更新时间:2019-01-27 16:08:30
|
相似题推荐
单选题
|
适中
(0.65)
【推荐1】下列说法正确的有( )
①绝对值等于本身的数是正数;
②近似数4.60与4.6的精确度相同;
③连接两点的线段的长度就是两点间的距离;
④若
,则点
就是线段
的中点.
①绝对值等于本身的数是正数;
②近似数4.60与4.6的精确度相同;
③连接两点的线段的长度就是两点间的距离;
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b10134e7a46e6f6f7cb9d5e2371727d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
A.1个 | B.2个 | C.3个 | D.4个 |
您最近一年使用:0次
单选题
|
适中
(0.65)
名校
【推荐2】已知线段
,延长
至点
,使得
,点
是线段
上一点,且
,则
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/151f7aef7d0f56e18562f5a4030cf815.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc407329b26b97f085ddccd91c9565dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cf3d14eb32760482c383221784ee3f3.png)
A.![]() | B.5 | C.![]() ![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐1】如图,已知线段
,延长
至点
,使
.
为线段
的中点,若
,则
的值为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/25/9c67434a-106a-4db5-b1a2-003b0342e132.jpg?resizew=207)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d42e97eee705d164e6ac6de9ecd6d1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/151f7aef7d0f56e18562f5a4030cf815.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/714cc3707bba3bfdb56e251999be8592.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/25/9c67434a-106a-4db5-b1a2-003b0342e132.jpg?resizew=207)
A.6 | B.5 | C.4 | D.3 |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐2】已知点
在直线
上,
为
的中点,则
的长为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c82a10b4f0c9323d726804c89dd9548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/060f0244cb2b9d75dcfd8cf204bcd9b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
A.3 | B.5 | C.3或7 | D.1或5 |
您最近一年使用:0次