题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133620-93969.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133620-94187.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133620-76083.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133620-53722.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133621-25890.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133621-57969.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133621-67774.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133620-53722.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133621-56788.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133622-13172.png)
A.0 | B.1 | C.![]() | D.2 |
答案
解析
试题分析:(特例法)不妨设
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133622-81596.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133622-87979.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133623-21750.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133547-62301.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133547-17946.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133548-45074.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133548-47628.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133548-96494.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133548-69356.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133549-68491.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133549-94461.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133549-65436.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133549-74363.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133548-47628.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133550-53301.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133550-97501.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133550-34722.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133550-50072.png)
(1)求椭圆
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133548-45074.png)
(2)若点
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133551-94648.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133551-56994.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133548-47628.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133551-56994.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133541-76768.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133541-10738.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133541-86838.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133542-61752.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133541-86838.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133542-85896.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133539-78131.png)
A.16 B.11 C.8 D.3
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133530-96064.png)
A.
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133531-71969.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133531-97050.png)
C.
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133531-85598.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133531-37943.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023133516-75855.png)
A.7倍 | B.5倍 | C.4倍 | D.3倍 |
最新试题
- 1Tom can play the guitar, ______ he can’t play it ______. A.o
- 2关于下列四幅图的说法正确的是( )A.甲图的实验说明磁场能产生电流B.乙图的实验所揭示的原理可制成发电机C.丙图是演示
- 3下列可以用来监测空气污染的指示植物是( )A.苔藓植物B.蕨类植物C.藻类D.裸子植物
- 4下列各组微粒半径(r)之比大于1的是[ ]A. rF/rCl B. rI-/rI C. rMg
- 5已知直线x=a(a>0)和圆(x-1)2+y2=4相切,那么a的值是( )A.5B.4C.3D.2
- 6下列反应的离子方程式正确的是( )A.氢氧化钡溶液与硫酸反应:OH-+H+═H2OB.澄清的石灰水与稀盐酸反应:Ca(
- 7计算:。
- 8完形填空。 Once there was a boy in Toronto. His name was
- 9如果实数满足y=,那么的值是( ).A.0B.1C.2D.-2
- 10We are learning English, but how can we learn English well ?
热门考点
- 1下列日期中,地球公转速度较快的是[ ]A、1月1日 B、10月1 日 C、5月1日 D、8月1日
- 2如果数轴上的点A和B分别代表﹣2,1,P是到点A或者点B的距离为3的数轴上的点,那么所有满足条件的点P到原点的距离之和为
- 3【题文】余光中先生说:一个方块字是一个天地,美丽的中文不老。许多汉字自身的构成就能诠释含义、激发联想。请仿照示例拆拼汉字
- 419世纪末,日本发动大规模侵华战争最主要原因是: A.清政府的腐败与妥协B.帝国主义列强的纵容甚至支持侵华C.对中国进行
- 5每个人都有一个家。家,无论大小,只要温馨就好。你的家漂亮吗?你爱你的家吗?请以My Home为标题写一篇不少于60词的小
- 6用同一压强计探究液体压强特点时,实验现象如图所示,此现象可说明( )A.液体压强跟液体密度有关 B.液体压强跟深度有关
- 7Can you remind me how ______ to your house? [ ]A. get B.
- 8一I apologize for having made a mess in your bathroom.。一_____
- 9若∠α的余角为60°,则∠α=______.
- 10世人都盼望国共两党能实现第三次合作。国共两党合作最重要的前提和基础是A.坚持一个中国原则B.坚持走社会主义道路C.坚持两