题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020223538-43712.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020223538-19604.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020223538-38108.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020223538-84760.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020223538-19604.png)
A.![]() |
B.![]() |
C.![]() |
D.![]() |
答案
解析
如图,设球心为
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020223540-15001.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020223540-87073.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020223540-12387.png)
由
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020223538-19604.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020223540-68965.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020223540-93150.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020223541-43096.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020223541-63687.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020223541-92487.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020223541-76450.png)
由
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020223541-59042.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020223541-27754.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020223542-83765.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020223542-68084.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020223542-80750.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020223542-51596.png)
核心考点
试题【已知地球的半径为,球面上两点都在北纬45°圈上,它们的球面距离为,点在东经30°上,则两点所在其纬线圈上所对应的劣弧的长度为( )A.B.C.D.】;主要考察你对空间几何体的结构特征等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020223527-95620.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020223528-67530.png)
A.![]() |
B.![]() |
C.2 |
D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020223521-36498.png)
是 cm3.
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020223521-99452.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020223513-10665.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020223513-18193.jpg)
A B C D
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020223457-37731.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020223457-36425.jpg)
(1)求二面角B-AF-D的大小;
(2)求四棱锥E-ABCD与四棱锥F-ABCD公共部分的体积.
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020223443-95357.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020223443-77440.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020223443-18659.png)
(1)求证
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020223443-84141.png)
(2)在棱
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020223444-94638.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020223444-79170.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020223444-97995.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020223444-75754.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020223443-95357.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020223445-40983.jpg)
最新试题
- 1 He _______ to go to Tsinghua University to study after grad
- 2下列词语中加点的字,读音完全正确的一项是 ( )A.讥诮qiāo翘qi
- 3辛亥革命10周年之际,梁启超撰文写道,“辛亥革命有甚么意义呢?简单说……第一,觉得凡不是中国人都没有权来管中国人的事;第
- 4What __________ can you tell me?[ ]A. otherB. anotherC.
- 5为保障“十二五”规划的制定更为贴近实际,胡锦涛总书记等中央政治局常委的足迹遍及长城内外、大江南北。他们到农村、进企业、访
- 6What a mess I have made! How I wish I ______ to paint the wa
- 7【题文】按照要求,完成下面的题目。(2分) ①正义是社会进步的基石,是社会的核心价值所在。②正义不是一个摆在我们面前就
- 8信宜市五年来城乡居民生活改善情况:注:恩格尔系数是指食物支出在家庭消费总支出中所占比重。一般来讲恩格尔系数高于60%就认
- 9下列各句中,没有语病的一项是( )(3 分)A.面对当前的就业压力,我们的责任已不再仅仅是传授理论知识,我们更要致力于
- 10(8分)根据下图实验装置,回答有关问题:(1)在上图中写出标数字的仪器名称:①____ ________②_______
热门考点
- 1下图画的是四种现代类人猿,据图作答:(1)大猩猩、猩猩、长臂猿和黑猩猩分别是指图中的_______、_______、__
- 2萃取过程应如何加热[ ]A.酒精灯隔水加热B.酒精灯直接加热C.烘干箱加热D.微波加热
- 3饮用矿泉水可分为碳酸水、硅酸水和锶水等几大类。此外还有锌、锂、溴、碘及硒等的矿泉水,这里“锌、锂、溴、碘、硒”指的是A.
- 4如图,将一个矩形纸片ABCD,沿着BE折叠,使C、D点分别落在点处.若,则的度数为 A. B.
- 5小明在实验室蒸发某种溶液,他不需要的仪器是( )A.集气瓶B.蒸发皿C.酒精灯D.玻璃棒
- 6读图,回答问题。小题1:按照发生的顺序,下列排列正确的是A.①②③B.②③①C.①③②D.②①③小题2:②图中所示的地理
- 7下面这些动物形状各不相同,但是它们的共同特征是:______.
- 8在△ABC中,若A=120°,AB=5,BC=7,则AC=( )。
- 9已知引力常数G和下列各组数据,能计算出地球质量的是( )A.地球绕太阳运行的周期及地球离太阳的距离B.月球绕地球运行的
- 10【题文】 将下列语句填入文中的横线处(只填序号),使上下文意思连贯的一项是(3分)往往其他诗人让我们失望的时候,我们便会