题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145743-80072.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145743-71487.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145743-29839.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145743-73293.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145744-76222.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145744-31142.png)
A.![]() | B.![]() | C.5 | D.6 |
答案
解析
又∵∠CBD=∠OBF,∵△BOF∽△BCD,则BD=10,BO=5.∴OF:6=5:8,OF=
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145744-62834.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145744-61082.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145744-55194.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145732-66884.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145732-22619.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145732-85124.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145733-90356.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145733-18921.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145733-55332.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145733-95988.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145734-72888.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145734-55655.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145734-35589.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145733-18921.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145733-55332.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145734-99501.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145734-55655.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145735-35567.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145733-18921.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145733-55332.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145735-65608.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145735-49796.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145735-62791.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145736-59348.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145736-72304.png)
A.2个 | B.3个 | C.4个 | D.5个 |
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145729-73045.jpg)
AC=3,DE=5, 则OC的长为( )
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145723-10387.jpg)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145716-96331.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145716-50131.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145716-31774.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145716-19840.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145717-64470.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145717-75717.png)
A.8 | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145709-11431.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145709-11431.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145709-15127.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191106/20191106145710-24279.png)
最新试题
- 1我们每天应喝适量的开水,因为这有利于A.对无机盐的吸B.对葡萄糖的吸收C.体内代谢废物的及时排出D.对水的吸收
- 2Everyone has a hobby. Many people think that stamp collectin
- 3马头琴是哪个少数民族创造的乐器( )A.哈萨克族B.回族C.蒙古族D.维吾尔族
- 4如图为人体内气***换示意图,请据图回答: (1)甲图是________的气***换,进行气 ***换的结构是_____
- 5在航天飞行中,通常把卫星绕地球的速度称为第一宇宙速度,第一宇宙速度为7.9×103米/秒,则卫星绕地球运行24小时(一天
- 6—I don"t mind telling you what I know.—You______, I"m not a
- 7按要求画出图形并计算:(1)画一条线段AB=2厘米;(2)延长线段AB到点C,使BC=1厘米;(3)取AC的中点D,计算
- 8依下图分析(1)每天人摄取最多的食物应是含__________较多的食物。 (2)每天人摄取最少的食物应是含______
- 92013年1月云南省民族工作会议召开。会议指出,2013年全省民族工作要着力维护民族团结和社会稳定,着力加强少数民族干部
- 10文艺复兴时期人们认为:“人类可以成就伟大的事业。”这种理念充分说明了文艺复兴运动的性质是A.资产阶级思想解放运动B.古希
热门考点
- 1计算:(-x6)·(-x)2 = 。
- 2若mx+n=m﹣x(m,n是已知数,m≠﹣1),则x= .
- 3实验室为验证同主族元素性质递变规律,准备了如下药品:①AgNO3(aq) ②稀HNO3 ③Br2(aq) ④I2(aq)
- 4请根据下图回答下列问题:(1)指出下列编号仪器的名称:X______;Y______(2)实验室用加热高锰酸钾的方法制取
- 5在“探究光反射的规律”时,小李进行如图所示的实验:让一束光EO贴着纸板射到平面镜上,在纸板上会看到反射光线OF.(1)图
- 6[化学——化学与生活](15分)下列内容都与人们的生活和健康密切相关,请根据要求填空:(1)学生要注意合理膳食,注意食品
- 7根据下列装置图回答问题。①写出图中标有小写字母的仪器的名称:a_________;b_________。②若用氯酸钾制取
- 8据材料统计:1820—1875年之间,里尔(资产阶级)上层阶级的人数占总人口的7%增加到9%,而其遗嘱上所载明的财富则从
- 9为了遏制流动性过剩(流动性过剩是指经济运行中的货币存量超过了经济增长所必需)、信贷持续增长等经济矛盾,2007年5月8日
- 10阅读下文,完成问题。(8分)①2010年,国家住建部曾对全国351个城市进行调研,发现2008~2010年的3年间,62