题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205945-70046.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205945-11285.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205945-70872.gif)
(1)求证:平面
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205945-14236.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205946-13584.gif)
(2)求三棱锥
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205946-79158.gif)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205946-79158.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205946-66357.gif)
解析
核心考点
试题【如图:直平行六面体,底面ABCD是边长为2a的菱形,∠BAD=60°,E为AB中点,二面角为60°;(1)求证:平面⊥平面;(2)求三棱锥的体积;】;主要考察你对两点间的距离等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205939-24812.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205939-49357.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205939-24812.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205939-38923.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205939-60651.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205939-24812.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205933-59520.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205934-79011.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205934-75865.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205934-79725.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205934-63308.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205935-48992.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205935-85224.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205935-53058.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205930-76259.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205930-76676.gif)
A.6 | B.![]() | C.![]() | D.5 |
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205904-86910.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205904-48512.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205905-43824.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205905-57370.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205905-49797.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205905-12644.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205905-27061.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205906-14150.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205906-73396.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205906-62060.gif)
(1)证明:直线
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205907-83811.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205907-24347.gif)
(2)求异面直线
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205907-26629.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205907-65741.gif)
(3)求点
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205908-97463.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205908-18198.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205851-99081.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205851-47241.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205851-41045.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205851-63364.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205852-59771.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205852-15866.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205852-70959.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205852-15866.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205852-18973.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205853-25890.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205853-74176.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205853-13509.jpg)
最新试题
- 1下列对于毛细血管的描述,不正确的是( )A:毛细血管的血管壁非常坚韧B:毛细血管是连通于最小的动脉和最小的静脉之间的血
- 2Jack is a twenty-year-old young man. Two years ago, when he
- 3下列词语中加点的字,读音全都正确的一组是( )A.侪辈(chái)呱呱坠地(gū)雪茄(jiā)白炽灯(chī)B.
- 4— Which is ______, the sun, the earth or the moon? — Of cour
- 5.(10分)标准状况下,含有相同氧原子数的CO和CO2,其物质的量比为 ;质量之比为
- 6球面上有3个点,其中任意两点的球面距离都等于大圆周长的,经过这3点的小圆周长为,那么这个球的体积为
- 7下列说法正确的是 ( )A.物质的量可理解为物质的质量B.物质的量就是物质的粒子数目C.物质的量是度量物质所含
- 8 某个以中学生为阅读对象的刊物开设了一个名为“聊聊吧”的新栏目,栏目宗旨是为面临困惑和苦恼的青春期中学生提
- 9如图所示,阴极K发射电子,阳极P和阴极K间加上电压后电子被加速。A,B是偏向板,使飞进的电子偏离。若已知P,K间所加电压
- 10我国伟大的领导人毛主席1958年7月在得知江西余江县消灭血吸虫病后曾写下“坐地日行八万里,巡天遥看一千河.”的诗句,在该
热门考点
- 1加热下列各物质,其生成物中既有游离态氧,又有化合态氧的是( )A.碳酸钙B.高锰酸钾C.氯酸钾D.碳和氧化铜的混合物
- 2下列自然资源中属于不可再生资源的是[ ]A、生物资源 B、矿产资源 C、水资源 D、气候资源
- 3“美洲的发现,绕过非洲的航行,给新兴资产阶级开辟了新天地。”《共产党宣言》中的这句话是对哪一重大历史事件的描述[
- 4下图是14世纪欧洲画家根据《马可·波罗游记》而创作的中国杭州市景图。对此画的评论较为合理的是[ ]A.反映14世
- 5By the time he realizes the mistake he _____, it will be too
- 6下列各组词语中,没有错别字的一组是[ ]A.噩耗 揩油 不加思索 繁芜丛杂B.精悍 忸怩 绿草如阴
- 7古人造字,蕴含着某些地理知识,如“间”一“门里有日午间到”,午间即正午,如图。据此回答问题。小题1:图中房屋的朝向可能是
- 8在“万众一心,抗击非典”的过程中,经常使用体温计测量人体的温度,其体温计的测量范围是______.
- 91921-1929年世界主要国家工业总产值增长表国 家苏联英国法国德国美国日本年均增长率24.3%17%9.4%7.1%
- 10水平桌面上有如图所示的实验器材,利用这些器材探究平面镜成像的特点,请回答以下问题。(1)为了方便确定像的位置和对比像与物