题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022160904-87882.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022160904-54559.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022160904-84087.png)
A.![]() | B.![]() | C.![]() | D.![]() |
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022160904-54559.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022160905-57484.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022160904-84087.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022160905-70463.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022160906-25683.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022160906-96389.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022160906-69395.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022160851-65282.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022160851-73938.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022160851-75168.png)
直线
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022160851-11176.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022160852-37723.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022160852-37723.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022160852-13724.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022160853-49412.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022160847-29617.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022160847-64400.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022160848-18058.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022160848-86698.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022160848-72637.gif)
(10分)△ABC中,已知三个顶点的坐标分别是A(
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022160836-18906.gif)
(1)求AC边上的高线BH所在的直线方程;
(2)求
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022160836-60374.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022160837-58002.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022160830-27421.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022160830-27421.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022160831-83594.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022160823-31082.gif)
(Ⅰ)当
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022160823-15343.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022160823-74073.gif)
(Ⅱ)若直线
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022160823-74073.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022160823-27570.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022160823-69036.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022160823-69036.gif)
最新试题
- 1如图,在同一直角坐标系中,左右两图关于y轴对称,图案中的顶点A与B,C与D的坐标分别有什么关系?
- 2两球A、B在光滑水平面上沿同一直线,同一方向运动,mA=1kg,mB=2kg,vA=6m/s,vB=2m/s.当A追上B
- 3“宝剑锋从磨砺出,梅花香自苦寒来”以及“书山有路勤为径,学海无涯苦作舟”的警句共同表明了( )A.事业的成功需要发挥主
- 4根据汉语意思完成句子.1.你上课应该认真听讲.
- 5设OABC是四面体,G1是△ABC的重心,G是OG1上一点,且OG=3GG1,若=x+y+z,则(x,y,z)为( )
- 6我们平时用肉眼看到的是太阳的[ ]A、日珥 B、光球层 C、色球层 D、日冕层
- 7阅读材料,回答问题。 20世纪七八十年代,东亚一些国家经济出现高速增长,成为世界上经济发展最快的地区之一。材料一 19
- 8—Hey, Peter, did you enjoy your party last night? —Definitel
- 9全国的经济重心完成了从黄河流域到长江流域的转移是在 [ ]A.西汉时 B.唐朝时 C
- 10读右图,完成16-17题。15.M区域的农业地域类型是 ( ) A.水稻种植业 B.大牧场放牧业 C.商品
热门考点
- 1人眼看物体时,当物距变化时,眼睛的睫状肌会改变晶体的弯曲程度,使物体的像总能落在视网膜上,当晶状体变得最______时,
- 2不定项选择伽利略对自由落体的研究,开创了研究自然规律的科学方法,这就是( )A.对自然现象进行总结归纳的方法 B.用
- 3听下面一段材料,回答第1-2题。 1. What place are they going to visit? [
- 4下列盐不能由金属和稀硫酸反应直接制取的是[ ]A.FeSO4B.Fe2(SO4)3C.MgSO4D.Al2(SO
- 5Here is my classmate ________ bicycle was lost yesterday.A.h
- 6据图一叶片的结构示意图,图二叶肉细胞及细胞内叶绿体和线粒体结构示意图,回答:(1)图一中[3]的名称是 ,
- 7正四面体的侧面与底面所成的二面角的余弦值为( )A.13B.12C.32D.22
- 8下列说法正确的是( )A.力很大,位移也很大,这个力做的功一定很大B.一对作用力与反作用力对相互作用的系统做功之和一定
- 9为什么我们能从各个方向看到桌子、墙壁等本身不发光的物体?
- 10每件原价为c元的上衣,按九折出售,现价应为______.