题目
题型:不详难度:来源:
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022202050-84545.png)
解析
试题分析:设C点坐标为
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022202050-10590.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022202050-88541.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022202051-46303.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022202051-48402.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022202051-89679.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022202050-84545.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022202041-83845.jpg)
(1)求异面直线B1C1与AC所成角的大小;
(2)若该直三棱柱ABC-A1B1C1的体积为
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022202041-22062.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022202028-64023.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022202028-97118.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022202028-97118.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022202028-64023.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022202028-97118.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022202028-10643.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022202028-10643.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022202028-97118.png)
①3; ②4; ③5; ④6; ⑤7
以上结论正确的为______________。(写出所有正确结论的编号)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022202028-39020.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022202014-15779.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022202014-11464.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022202014-77734.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022202014-38745.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022202015-14943.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022202015-37750.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022202006-51555.png)
A.±![]() | B.±![]() | C.![]() | D.![]() |
最新试题
- 1直角三角形三边长分别为2,3,m,则m=( )。
- 2______ difficult the problem was, he tried his best to solve
- 3请按时间先后顺序排列下列事件①德国科学家萨克斯证明了绿色叶片在光合作用中产生了淀粉 ②美国科学家鲁宾和卡门采用同位素标记
- 4数列满足,.(Ⅰ)求、、;(Ⅱ)求的表达式;(Ⅲ)令,求.
- 5已知函数有最大值,试求实数的值.
- 6山东简称鲁,又称齐鲁大地,这一名称起源于A.大汶口文化B.分封制C.甲骨文记载D.古代地名
- 7如图,△ABC中,D、E分别为AC、BC边上的点,AB∥DE,CF为AB边上的中线,若AD=5,CD =3,DE =4,
- 8As tensions flared this week between China and Japan over th
- 9为防治碘缺乏病,我国正推广食用加碘盐,即在食盐中加入适量碘酸钾(化学式为KlO3),严禁出售不含碘的工业盐。下面请按要求
- 102013年年末,中组部印发《关于进一步做好领导干部报告个人有关事项工作的通知》,要求进一步做好领导干部报告个人有关事项工
热门考点
- 1(1)克隆的实质是无性生殖还是有性生殖?克隆技术在植物界是否有应用? (2)克隆的过程中,三只母羊的作用分别是什么?
- 2【题文】(12分)阅读材料,完成下列要求。汉代长安城平面示意图
- 3 设f(x)可导,且f′(0)=0,又=-1,则f(0)( )A.可能不是f(x)的极值B.一定是f(x)的极值C
- 4解下列方程组.(1)x4+y3=7 ①x3+y2=8 ②(2)x3+1=y ①2(
- 5香港与哪个经济特区临近[ ]A.厦门 B.汕头 C.深圳 D.珠海
- 6已知各项均不为零的等差数列满足,数列是等比数列,且,则 A.16B.8 C.4D.2
- 7小军的老师为了了解小明的思想动态,一天拿出小明的信件查看内容 ,这侵犯了小军的[ ]A.隐私权
- 8书写化学方程式必须遵守两个基本原则:一是以______为基础;二是______.
- 9如图汽车通过轻质光滑的定滑轮,将一个质量为m的物体从井中拉出,绳与汽车连接点距滑轮顶点高h,开始绳绷紧滑轮两侧的绳都竖直
- 10(8分)在光滑的水平面上,有一静止的物体,其质量为7Kg,它在一大小为14N的水平拉力下从静止开始运动,求:(1)5s末