优课网
首页
数学
语文
英语
化学
物理
政治
历史
生物
首页
> 如图△ABC是等腰直角三角形,BC是斜边,将△ABP绕点A逆时针旋转后,能与△ACP′重合,已知AP=3,则PP′的长度是()A.3B.32C.52D.4-数学
如图△ABC是等腰直角三角形,BC是斜边,将△ABP绕点A逆时针旋转后,能与△ACP′重合,已知AP=3,则PP′的长度是()A.3B.32C.52D.4-数学
题目简介
如图△ABC是等腰直角三角形,BC是斜边,将△ABP绕点A逆时针旋转后,能与△ACP′重合,已知AP=3,则PP′的长度是()A.3B.32C.52D.4-数学
题目详情
如图△ABC是等腰直角三角形,BC是斜边,将△ABP绕点A逆时针旋转后,能与△ACP′重合,已知AP=3,则PP′的长度是( )
A.3
B.
3
C.
5
D.4
题型:单选题
难度:中档
来源:不详
答案
B
上一篇 :
已知在△ABC中,∠C=90°,∠B=60
下一篇 :
如图,在Rt△ABC中,∠C=90°,∠ABC
搜索答案
更多内容推荐
阅读理解。 Maybe ten-year-old Elizabeth put it best when she said to her father, "But, Dad, you can&
阅读下面短文,根据以下提示:1)汉语提示 2)首字母提示 3)语境提示,在每个空格内填入一个适当的英语单词,所填单词要求意义准确,拼写正确。 Dear Sir, I'm a senior h
阅读理解。When a friend is sad about a tragedy (悲剧), it's hard to know how to comfort (安慰) him/ her.
阅读理解。Although there are no state controlled survival courses in Britain or the United States, there
阅读理解。 Coffee has been a part of people's lives for thousands of years, and today it is still on
阅读理解。 In Canada you can find dogs, cats, horses, etc. in almost every family. These are their pets.
请阅读下列电视节目的信息, 然后阅读以下各人的信息。请从A、B、C、D、E和F中为他们选出想看的电视节目。选项中有一项是多余选项。(E=AB, 选 F=CD) TODAY'S TELEVI
阅读理解。 Few people find it easy to refuse a bargain (a product sold at lower price). But bargains are
语法填空。 How could the survivors believe it was1______ (nature)? Everywhere they looked nearly everythi
阅读理解。 A newspaper reporter's job can be very interesting. He meets all types of people and live
阅读理解。"How are you?" is a nice question. It's a friendly way that people in the United
一个健康、可爱的婴儿的降生给家庭带来无限的欢乐,为降低遗传病发生率,可在B超配合下用PTC穿刺针进行脐带取血,做早期检测。下图为取血示意图,请回答问题:(7分)(1)胎儿由-七年级生物
小蓝是一位青春洋溢的美少女,有着迷人的双眼皮。请回答:(8分)(1)小蓝的生命开始于一个叫________的细胞,这个细胞是在妈妈的________(填“子宫”或“输卵管”)中形成的。可不要-七年级生
(每空1分,共4分)我们每一个人是怎样来到这个世界上的呢?下面是人的整个生殖过程,请结合女性生殖系统结构示意图,将其补充完整。(1)[]产生卵细胞。(2)卵细胞与精子在[]____-七年级生物
(每空1分,共3分)思考生殖系统结构与功能,将代表功能的数字填入空格中。A.精囊腺、前列腺①贮存和输送精子B.睾丸②输送精子C.附睾③分泌黏液D.输精管④保护睾丸和附睾E.阴囊⑤能-七年级生物
做过双侧输卵管结扎手术的育龄妇女,一般将不再具有生育能力,分析其原因正确是()A.卵巢不能产生和排出卵细胞B.卵巢不能产生雌性激素C.卵细胞不能在输卵管与精子相遇D.子宫内-七年级生物
阅读理解。Britain TodayFoodBritish people like good food,and more than half of them go to a restaurant ev
阅读理解。Until recently we had been living in the Yukon Territory in Canada, in a town seventy miles or
化学是一门以实验为基础的科学,学习化学的一个重要途径是______.-九年级化学
对比实验是运用比较的方法来揭示事物的性质或变化规律的一种实验方法.课本中设计的下列实验不属于对比实验的是()A.铁钉锈蚀实验B.鉴别硬水与软水C.制作叶脉书签D.探究可燃物-化学
学习化学的一个重要途径是______.-化学
实验探究不能体现化学学习特点的是[]A.关注物质的变化B.关注物质的用途C.关注物质的性质D.关注物质的变化过程和现象-九年级化学
阅读理解。Welcome to our school. You can do a lot of things here. Come and join us. TimetableSunday 8:30-
任务型阅读:Helen 信箱是一个报刊栏目,主持人Helen 回答读者提出的各种问题。第1至第4题是4位读者的来信,请从A. B. C. D. E 中为每封来信选出最合适的回复, ( )1. D-高一
信息匹配。请阅读下列应用文及相关信息,并按照要求匹配信息。【温馨提示】如果该题选E,请填AB;如果选F,请填CD。 首先,请阅读下列笔友俱乐部成员的信息: A. Culture fan:-高一英语
怀孕时,种植到子宫内膜的“种子”是()A.卵细胞B.受精卵C.胚泡D.胚胎-七年级生物
下列说法正确的是()A.受精卵的形成是一个新生命的开始B.人们常说的“十月怀胎,一朝分娩”,是说胎儿必须在母体内发育十个月C.子宫是分泌雌性激素的生殖器官D.双胞胎就是由两个-七年级生物
根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有一项为多余选项。 _____ 1. Smith is a professor who does research on ancien
阅读理解。 You are watching a film in which two men are having a fight. They hit one another hard. At the
阅读理解。Dear Editor,I'm a Senior 1 student in a middle school. This term, my favourite teacher, Mi
阅读理解。Foods from Around the WorldFoods that are well known to you may not be familiar to people from
阅读理解。 If there is one thing I'm sure about, it is that in a hundred years from now we will stil
阅读理解。 It is possible to do many simple tricks with numbers. Here is one trick. It has seven steps.Fi
阅读理解。 Have you ever seen a windsock blowing in the wind? Well, you can make one of your own! This is
受精的部位是()A.卵巢B.子宫C.输卵管D.阴道-七年级生物
怀孕好比一粒“种子”植入到子宫内膜上,这一粒种子就是A.受精卵B.胚泡C.胚胎D.胎儿-七年级生物
在人体的胚胎发育过程中,形成受精卵和胎儿发育的部位分别是A.卵巢、子宫B.阴道、子宫C.子宫、子宫D.输卵管、子宫-七年级生物
精子与卵细胞结合的过程叫A.分娩B.受精C.怀孕D.排卵-七年级生物
产生生殖细胞并分泌性激素的器官是A.卵巢和睾丸B.输卵管和输精管C.阴道和附睾D.子宫和精囊腺-七年级生物
阅读理解。Why play games? Because they are fun, and a 1ot more besides. Following the rules...planning yo
阅读理解。 You are enjoying the beautiful scenery in a quiet place, but suddenly the peace and quiet is i
新的生命是从何时开始的?()A.卵细胞和精子B.受精卵C.胚胎D.婴儿出生时-七年级生物
、下列有关人的生殖过程的叙述,错误的是A.精子和卵细胞在输卵管中结合B.胚胎和胎儿的发育主要在子宫内进行C.胎儿通过脐带和乳腺从母体获得营养D.胎儿产生的废物通过胎盘从母-七年级生物
阅读理解。 Around the world more and more people are taking part in dangerous sports and activities. Of c
阅读理解。 Many people have discovered that hobbies can be profitable as well as fun. Some people have su
、睾丸和卵巢的共同特征是A.排出生殖细胞B.产生生殖细胞,分泌性激素C.输送生殖细胞D.分泌性激素,产生尿液-七年级生物
阅读理解。 It is Saturday afternoon. You and your friends are planning to go to the movies and then spend
阅读理解。 The use of cars is becoming more and more popular in the twentieth century. A large number of
受精卵是新生命的开始,人体的受精作用发生在A.卵巢B.输卵管C.子宫D.子宫内膜-七年级生物
“十月怀胎,一朝分娩”,我们要感谢母亲给予我们生命,铭记母亲的恩情。母体供给胎儿营养物质的途径是A.脐带→胎盘→母体→胎儿B.胎盘→脐带→母体→胎儿C.母体→胎盘→脐带→胎儿D.母-七年级生物
返回顶部
题目简介
如图△ABC是等腰直角三角形,BC是斜边,将△ABP绕点A逆时针旋转后,能与△ACP′重合,已知AP=3,则PP′的长度是()A.3B.32C.52D.4-数学
题目详情
答案