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如图,在Rt△ABC中,∠C=90°,BD是三角形的角平分线,交AC于点D,AD=2.2cm,AC=3.7cm,则点D到AB边的距离是____ cm.

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1.5

同类题2

快速默读《放生》这篇文章,完成后面小题。

放生

    ①8岁那年,家里养的那条黄狗突然死掉了,窝里留下四只刚出生不久的狗崽。其中三只小狗长得虎头虎脑十分可爱,刚满月便被左邻右舍索走,唯独被我唤作小黄的那只小狗没人要——它瘦得教人担心。原因是它太挑食,只吃有味的东西,喂他馒头,要蘸上些有肉味的菜汤,它才肯张嘴。在那个并不富裕的年月,就算是村里条件最好的人家,也不见得是月月都有肉吃。而我们家,由于兄弟姐妹多,吃肉只是在过年的时候才会有的事情。

    ②小黄两个月的时候,和其他的小狗相比,越发显得瘦骨嶙峋起来。抚摸着皮包骨头的小黄,我的心里很难受,就好像是眼睁睁看着自己的兄弟姐妹忍饥挨饿却毫无办法。于是,我央求母亲:“妈,得想个办法啊,不然小黄会瘦死的。”

    ③父亲说:“放生吧。”全家人都是一愣。“它这么瘦,肯定没人要的。”“要是有人要小黄早就被抱走了。”“就是,那样的话,它就不会这么瘦了。”我和兄妹们叽叽喳喳个不停,议论纷纷。父亲摆摆手,示意大家静下来,然后正色道:“如果直接送人肯定没人要的。我想着,把它送到旁边的村庄去,他们村里有人开养鸡场,还有人跑生意,有钱人多一些……”

    ④父亲的主意得到了全家人的一致赞同。于是,当天晚上,大哥和二姐就行动了。当他俩兴高采烈地从外面跑进院子的时候,我的心里有些失落,但一想到小黄以后就要过吃香喝辣的美好生活,这种失落很快就烟消云散了。

    ⑤计划和现实总是有着那么一些距离,就当大家都不再念叨小黄的时候,它竟然跑回来了!

    ⑥小黄突然出现在院子里,瘦弱的它欢快地摇着自己的小尾巴,冲着母亲“汪汪”叫着,仿佛在庆幸自己终于回到了家。母亲一下子怔住了。那天中午,母亲像款待贵宾那样,把一个刚蒸好的馒头夹上一块腌制的腊肉摆在了小黄的面前。

    ⑦当天晚上,我们全家再次围坐在一起,商量对策。

    ⑧最后,大家达成了一致意见,那就是把小黄送到更远的姚村。

    ⑨父亲推出家里的那辆二八自行车,把依旧赢瘦的小黄放进自行车后面的挎篮,然后,在二哥的提示下,又给小黄蒙上了眼睛以防止小黄记路,就趁着暮色出发了。

    ⑩我在经历过短暂的兴奋之后,开始担心起小黄的安危来。我问母亲:“万一姚村的人们讨厌小黄怎么办?小黄会不会被饿死?”母亲喃喃良久,像是在回答我,又像是安慰自己:“姚村那里有个屠宰场,经常杀猪杀牛什么的,总会留些骨头吧,小黄现在肯定有吃的了。”我想了想,追问道:“那他们不会把小黄也杀掉?”母亲一下子愣住了。她若有所思地望着我,半天没有说话。

    ⑪晚上,我听到母亲和父亲激烈的争吵声。当我喊来大哥和大姐过来劝架时,他们已经不吵了,父亲叹了口气,说:“这么瘦的狗,谁会忍心杀它吃呢?”然后,推着车子出去了。

    ⑫深夜,我在被窝里听到一阵狗吠声,声音是如此的熟悉,以至于我一下子便清醒过来。

    ⑬“小黄回来了!”大姐惊喜地在院子里嚷道。我急忙跑出门去,看到母亲蹲在地上,正抚摸着小黄的脑袋,好像那是她宝贝的孩子一样,眼角有泪花闪烁。小黄则依然欢快地摇着自己的小尾巴,用头亲昵地拱着妈妈的手,真像是孩子见到了妈。大哥在一旁感叹说:“没想到放生一条狗这么难!”母亲说:“老黄狗给咱家看了十多年的门,没有功劳还有苦劳呢,难道咱们要眼睁睁看着她的崽子被饿死?连条狗都喂不活,咱还不被外人笑话死!”

    ⑭这是一次不成功的放生,却是一次成功的尝试。从此,不论家里遇到何等的困难,全家人都再没动过将小黄赶走或放生的念头。

    ⑮多少年过去之后,我还是会清晰地记得,在那段贫困的岁月里,全家人围在一起为了改善一条狗的生存境地而热烈讨论的场景。这条名叫小黄的狗虽然瘦,但却顽强,一直活了十多年,对我家不离不弃。有时我就想,狗不嫌家贫,莫非动物和人类一样,也懂得一种名叫感情的东西?

    ⑯贫苦生活培养出的感情往往更加淳朴和动人。在这个世界上,有一种东西是可以超越一切的,那就是对生命的尊重,哪怕这个生命是多么的微不足道,哪怕它仅仅是一条瘦骨瞵峋的狗。

(根据李均同名短篇小说改编)

同类题5

阅读理解

    Disney World, Not To Be Missed!

    Are you still looking for an amusement park to enjoy yourself? Then, Disney World is your best choice! Disney World has four theme parks. A single-day admission ticket to any of these four theme parks is $67 for adults and $ 56 for young children above three years. The very best time to come here includes middle of April to late May, and Labor Day to middle of November or early December. You'll surely have a fantastic and memorable experience!

Magic Kingdom

    This is the original Disney park from which the entire Disney World has expanded. Once you get here, you can pose for pictures with the Disney characters at the entrance. But if you want to save time, go straight to the Main Street. The children would almost certainly desire to see the Dumbo and Winnie. Just remember the parking lot is usually packed. You will need to walk to the entrance gate.

Epcot

    Epcot is divided into two sections: World Showcase and Future World. Future World is all about futuristic rides and high-tech attractions like Test Track and Turtle Talk with Crush.  World Showcase, which lies along a lake, shows international styles from different parts of the globe, including Germany, Canada, Mexico, China and a lot more.

Disney's Animal Kingdom

    If you're an animal lover, you'll really like the Animal Kingdom. The newest addition to this part of Disney World is the Expedition Everest ride plus the Finding Nemo stage show. It's very best to come here in the morning when animals are more active. The safari(游猎)is open but the opening hours depend on the animals, and how active they are during the day.

Disney's Hollywood Studios

    You will discover plenty of huge attractions inside this movie park. Indiana Jones, Playhouse Disney Live, Beauty and the Beast Live on Stage, and also the Lights, Motors, Actions Extreme Stunt show are just few of what you need to watch out for. It is also the very best spot for taking pictures with Disney characters.