题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010958-69245.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010958-42472.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010959-70163.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010959-73667.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010959-52623.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010959-36292.png)
A.![]() | B.![]() | C.![]() | D.![]() |
答案
解析
试题分析:∵
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022011000-74125.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022011001-62446.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022011001-70730.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022011001-52273.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022011001-62446.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022011000-18169.png)
点评:熟练运用异面直线的定义是解决此类问题的关键,属基础题
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010950-66584.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010950-43089.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010950-96469.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010950-58589.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010950-64423.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010950-53557.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010950-90403.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010950-99792.png)
(Ⅰ)求证:
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010950-25724.png)
(Ⅱ)求二面角
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010950-33605.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010942-44890.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010942-15280.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010942-82216.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010942-68139.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010943-66573.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010943-46278.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010942-44890.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010943-92672.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010942-15280.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010943-16329.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010943-26947.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010942-82216.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010942-68139.png)
A.
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010939-36680.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010939-57008.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010939-19948.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010939-66367.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010935-61442.png)
A.0 | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010930-91632.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010930-99963.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010930-86979.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010930-16277.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010930-99963.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010931-19754.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022010931-38864.png)
A.![]() | B.5 | C.![]() | D.7 |
最新试题
- 1“中国梦”,折射出近代以来的中国历史发展主线,描绘了近现代中华民族生生不息、不断求索的历史。阅读材料,回答问题。近代――
- 2(12分)已知为等差数列,且,。(Ⅰ)求的通项公式;(Ⅱ)若等差数列满足,,求的前n项和公式
- 3曲线在p0处的切线平行于直线,则p0点的坐标为 [ ]A、(1,0)B、(2,8)C、(1,0)和(-1,-4)
- 42010年5月16日新浪网报道,“母亲节”问卷调查,孩子眼中的妈妈调查结果:42%的孩子表示妈妈”,25%的人表示妈妈“
- 5在比较植物油和酒精(密度不一样)的热值时,小明的做法是:①取体积相同的酒精和植物油,分别注入到两个相同的火锅炉中.②在两
- 6—How long did Mary work here?—For half a year, but she didn’
- 7按要求改写句子1. Mr Green drives to his hometown every year. (用last
- 8若按给定的三个条件画一个三角形,图形唯一,则所给条件不可能是( )A.两边一夹角B.两角一夹边C.三边D.三角
- 9打开网络搜索,有人发现关于算命的主题可以找到172个网站和12000多个网页。其中算命的方式很多,如姓名、手相、面相等可
- 10下列函数中是周期为的奇函数的为A.B.C.D.
热门考点
- 1下列物质中既存在离子又存在分子的是[ ]A.氯化钠晶体 B.金刚石 C.氯化钠溶液 D.液氧
- 2该图表示我国南方地区和北方地区土地面积、水资源总量、人口及耕地等指标的对比。图中字母a 、b 、c 、d 代表的指标分别
- 3阅读下面一则材料,回答问题。(4分)一位女士抱怨道:“我活得很不快乐,因为先生常出差不在家。”她把快乐的钥匙放在先生手里
- 4The split between humans and living apes is thought by some
- 5在种群的下列特征中,对种群的数量变动起决定作用的是[ ]A.种群密度B.年龄组成C.性别比例D.出生率和死亡率
- 6小刚所在的学校要参加市级中学生篮球比赛,篮球技术全面的小刚被老师推荐,而小刚认为训练和参赛必然会影响学习,拒绝参加。判断
- 7金融危机袭来,就在普通百姓为自己饭碗发愁的时候,金融业高管们天价薪酬问题成了大家争议的话题。回答下题。 人们之所以对金
- 8(二)(共11分)①人类本质上的沉重感,主要源于责任、期盼和压力。因而,承受便是生命的一种需要和方式了。②我们不可能也绝
- 9有“绿色水库”之称的生态系统的是( )A.森林生态系统B.湿地生态系统C.草原生态系统D.海洋生态系统
- 10有一混合溶液由稀HNO3、K2CO3、H2SO4、CuCl2四种物质中的二种混合而成.向该混合溶液中滴入Ba(OH)2溶