题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025519-35800.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025519-40103.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025519-20687.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025520-36284.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025520-67818.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025519-20687.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025520-83850.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025520-84009.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025520-83850.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025520-81347.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025519-35800.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025519-20687.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025521-18505.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025521-55069.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025521-18505.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025521-55069.png)
⑴点
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025520-67818.png)
⑵如图1,若点
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025521-18505.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025521-87573.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025520-83850.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025521-32261.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025521-71851.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025521-32261.png)
⑶如图2.若以点
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025521-18505.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025522-51837.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025522-51837.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025522-46403.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025522-26920.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025522-26920.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025522-16981.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025522-16981.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025522-21720.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025520-67818.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025523-57444.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025523-92606.png)
⑵令
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025520-81347.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025523-83346.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025523-75206.png)
∴点
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025521-18505.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025524-96004.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025522-16981.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025524-91628.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025524-72221.png)
∴点
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025521-55069.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025524-25288.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025522-16981.png)
∴
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025524-23091.png)
作
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025525-46379.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025521-32261.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025525-56170.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025521-71851.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025525-23905.jpg)
∴
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025525-55908.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025526-81971.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025526-54008.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025526-66595.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025526-18255.png)
作
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025526-21827.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025521-32261.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025527-50446.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025521-71851.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025527-92264.jpg)
同理可得
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025526-81971.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025527-93175.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025527-58951.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025528-47333.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025528-80748.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025528-81213.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025521-71851.png)
作
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025528-19185.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025528-32586.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025529-27617.jpg)
∴
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025529-36105.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025529-39567.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025529-39337.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025529-83550.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025530-32174.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025530-22684.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025530-58756.png)
∴
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025521-32261.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025526-18255.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025528-47333.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025530-58756.png)
⑶当
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025530-28179.png)
∴
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025531-14312.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025531-30978.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025531-43467.png)
∴
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025531-27403.png)
解析
(2)首先表示出PQ的长度,进而得出当PH=HQ且∠PHQ=90°时以及 当PH=PQ时△PQH为等腰直角三角形,分别求出即可;
(3)分别根据当
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025531-67357.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025532-89637.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025516-65106.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025516-87028.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025516-83809.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025509-42997.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025509-45404.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025510-44229.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025510-56084.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025510-38771.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025510-81935.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025510-66698.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025510-26074.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025510-70617.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025510-86377.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025511-44380.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025511-92605.png)
商品类型 | 甲 | 乙 | 丙 |
每个集装箱装载量(吨) | 8 | 6 | 5 |
每吨价值(万元) | 12 | 15 | 20 |
(1)如果甲种商品装
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025502-62689.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025502-41128.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025502-41128.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025502-62689.png)
(2)如果其中5个集装箱装了甲种商品,求每个集装箱装载商品总价值的中位数.
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025458-88040.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025458-40389.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025458-79223.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016025459-72613.png)
最新试题
- 1读图,完成下列问题。(1)华北地区的北界是_____________,南界是_____________——_______
- 2我国提倡多大年龄的人可以无偿献血[ ]A.22~45周岁 B.18~45周岁 C.18~55周岁 D.22
- 3月亮、太阳、点燃的火把,其中属于光源的是( )A.太阳和月亮B.太阳、月亮、火把C.只有太阳D.太阳和点燃的火把
- 4大量乡村人口向城市迁移带来的问题是( )①住房紧张,交通拥挤②水土流失③垃圾、噪声污染,环境污染④就业、入学、医疗紧张
- 5阅读材料,回答问题。(12分)材料:文字是一个民族、一个国家的文化根基,是民族文化传承的重要工具。有了汉字,中华民族才有
- 6玄奘西行是唐朝哪个皇帝在位时 [ ]A.唐高祖 B.唐太宗C.唐玄宗D.唐中宗
- 7小夏通过因特网下载攻打巴士底狱、雅各宾派专政等资料,由此判断他在研究( )A.英国资产阶级革命 B.俄国农奴制改革
- 8—The Summer Palace is wonderful. Have you ever visited any o
- 9读世界部分区域某时气压分布示意图,回答下列问题。(10分)(1)图中A气压中心的名称是___________,被切断的是
- 10下面的图案是2010年广州亚运会的会徽,写一段说明会徽的图案构成和设计意图的文字(不少于100字)。
热门考点
- 1认真观察A、B两装置,写出B装置中发生反应的化学方程式 ,水中氢元素和氧元素的质量比为
- 2某工艺品厂要从一块矩形的石板中截断的方式割出一块与原矩形各边分别平行的较小的矩形石板(如图),“截断切割”是指每次割沿一
- 3定义在上的函数,对任意都有,当时,,则________.
- 4已知函数f(x)=x3-3ax-1,a≠0。(1)求f(x)的单调区间;(2)若f(x)在x=-1处取得极值,直线y=m
- 5随着互联网的发展,一些网络新词汇层出不穷。这些新词汇不只在网上盛行,还出现在中学生的作文中。对此,正确的态度应该是 [
- 6如图所示,将一个物体用两根等长的绳子OA、OB悬挂在半圆形的架子上,B点固定不动,结点O也不移动,悬点A由位置C向位置D
- 7阅读材料,回答问题:秦朝统一后,官员王绾等建议说:“如今六国刚亡,燕.齐.荆(楚)处于僻远之地,如不分封建国,谁去管理?
- 8下列长度的各组线段为边能组成一个三角形的是[ ]A.4,6,11 B.4,5,1 C.10,10,1 D.2,3
- 9阅读下面两则文言文,完成小题。(17分)【甲】至于负者歌于途,行者休于树,前者呼,后者应,伛偻提携,往来而不绝者,滁人游
- 10【古文阅读】王文正①太尉局量②宽厚,未尝见其怒。饮食有不精洁者,但不食而已。家人欲试其量,以少埃墨投羹中,公唯啖⑤饭而已