题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171704-27838.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171704-90777.png)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171704-81579.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171704-82935.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171705-85650.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171705-97023.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171705-14269.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171705-61731.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171704-81579.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171705-75768.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171706-42543.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171706-48884.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171706-94996.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171706-38587.jpg)
由图可知,当点
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171707-29773.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171707-60565.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171707-56859.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171707-35875.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171707-25721.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171704-90777.png)
核心考点
试题【已知点A(4,4),若抛物线y2=2px的焦点与椭圆=1的右焦点重合,该抛物线上有一点M,它在y轴上的射影为N,则|MA|+|MN|的最小值为_________】;主要考察你对椭圆的定义与方程等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171645-82943.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171645-77865.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171646-84032.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171646-95467.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171646-73470.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171646-10252.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171646-61612.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171637-64341.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171637-46463.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171638-37213.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171638-54452.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171638-55880.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171638-27976.png)
A.4 | B.8 | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171621-38537.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171621-59000.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171621-23900.png)
(Ⅰ)求椭圆
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171621-44937.png)
(Ⅱ)若直线
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171621-29113.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171621-44937.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171622-73397.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171622-51002.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171622-46283.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171623-56708.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171607-11611.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171607-21099.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171607-65097.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171607-94873.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171607-25443.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171607-31334.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171607-76080.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171607-78744.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171607-94873.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171608-38273.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171608-87152.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171608-29228.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171608-96044.png)
(1)当直线
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171607-76080.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171608-80889.png)
(2)当点
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171608-38273.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171608-65569.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171608-28272.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171608-16101.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171557-48088.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171557-76814.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171558-88991.png)
(1)求椭圆的标准方程;
(2)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171558-74753.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171558-70396.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171558-74753.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171558-28932.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023171559-68505.png)
最新试题
- 1铜和浓硝酸反应生成NO2,当浓硝酸变稀后,则生成NO,3.84克铜和适量浓硝酸反应后,铜全部反应完,收集到标准状况下NO
- 2如图所示,要求点光源S发出的光线经平面镜反射后刚好通过A点,试画出光路图.
- 3声音是由发声体的__________而产生的。钢琴、吉他、笛子等乐器发出的声音,即使音调、响度都相同,也可以从它们的__
- 4下列做法可用“饮鸩止渴”形容的是 [ ]A.合理施用农药、化肥 B.提倡植树造林,扩大绿化面积 C.加强工业废水
- 5如图,一只蚂蚁从长宽都是3,高是8的长方体纸箱的A点沿纸箱爬到B点,那么它所行的最短路线的长是( )A.(32+8)c
- 6若此图表示地壳物质循环(提示:c表示外力作用),下列叙述正确的是( )A.桂林地区的喀斯特地貌属于③类岩石B.石油和天
- 7根据短文内容选择正确答案。Mrs. Smith is Jim"s mother. She loves her famil
- 8下列句中加点的词语运用不恰当的一项是( )A.帮助学生“砍断自卑的枷锁”,是教师义不容辞的职责。B.作文,要写真情
- 9晏殊,字同叔,抚州临川人。七岁能属文,景德初,张知白安抚江南,以神童荐之。帝召殊与进士千余人并试廷中,殊神气不慑,援笔立
- 10酒精的热值是3.0 ×107J/kg,酒精的比热容是2.4×103J/(kg·℃),如果100g酒精烧去一半,那么剩余一
热门考点
- 1惠州农业生产一般不会受到下列何种天气的影响[ ]A、春季低温 B、夏季暴雨 C、秋季扬沙 D、冬季霜冻
- 2已知集合则=A.B.C.D.
- 3若a-7与2a+1是同一个正数的两个不同的平方根,则a的值是( )A.-8B.8C.-2D.2
- 4【题文】下列各句中,加点成语使用不正确的一句是( )A.善良、本分的窦娥含冤被斩,是对当时社会上普
- 5(11分)中考前夕,我校组织初三年学生参加初中化学技能考试,下图是小军抽到考查内容所需要的基本仪器或装置。请回答下列问题
- 6读图分析,完成下列各题:(1)南回归线是______带和______带的分界线;北极圈是______带和______带的
- 7对救灾物资的理解正确的是 [ ]A.不是商品,因为它的使用价值还没有得到社会的普遍承认 B.是商品,因为它凝结了
- 8下列属于生态系统的是( )A.一片树林B.一个池塘中的全部鱼C.一块农田中的全部水稻D.一条河中的全部动物
- 9南宁市良东污水处理厂是一座利用外国政府贷款兴建的现代化城市污水处理厂,它是改善南宁市水资源的一项绿色环保工程.防治水污染
- 10“人民选我当代表,我当代表为人民。”这表明在我国 [ ]①人民根植于人民,对人民负责②各级人大代表均由人民直接选