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市南区中医医院贵么青岛妇幼保健医院怎么样好吗China is to do away with its controversial one-child policy, according to state-run news agency Xinhua.据中国官方通讯社新华社报道,中国将废除备受争议的独生子女政策。The ruling Communist Party reportedly announced the decision to allow two children per couple at the end of a summit to finalise its next five-year plan.据报道,在经过确定下一个五年计划的高层会议后,执政的共产党宣布每对夫妇可以生育两个孩子。Introduced in 1979, the policy limited most couples to only a single offspring.计划生育于1979实施,该政策限制大多数夫妻只能生育一个子女。Authorities argued the subsequent economic boom was a result of the law. However, a rapidly ageing population, shrinking workforce and gender imbalances now suggest otherwise.当局认为该政策促进了随后的经济繁荣。然而人口的老龄化、劳动力的下降以及男女的不平衡却与此截然不同。Limited exceptions to the policy were introduced two years ago, but China continued to suffer economically, with experts predicting it could be the first country ever to grow old before it becomes rich.政策的限制例外于两年前推出,但中国继续遭受经济上的损失,有专家预测中国可能成为第一个未富先老的国家。译文属。 /201510/406902莱阳儿童医院男科怎么样 栏目简介:《趣味青春英语视频》是外语网络电台的精品节目,通过大讲堂的网络课堂形式,能够帮助英语学习者积累一些英语背景知识,并通过互动的教学形式,帮助有效记忆英语知识。本栏目是学习趣味青春英语的好材料。201604/431263栏目简介:;Shanghai Live; focuses on big events in the city and major issues around the world, and presents them in a practical and audience-friendly manner to meet the ever-evolving needs of Shanghais English-speaking viewers,both local and expatriate.《直播上海英语电台》集中报道城市大事件以及全球热点话题,并以观众喜闻乐见的方式呈现给大家,从而满足上海本地以及上海海外人士的英语需求。201602/428162青岛人流手术哪家比较好

青岛哪个医院体检比较好Its only a question of finding them.But now, theres a new theory.问题只是找没找到 但是现在有种新的理论Its called the Rare Earth Theory.像我们这样的星球可能很稀少这就是稀有地球理论It says that simple life, like bacteria,该理论认为像细菌一样的简单生命the type of slime Ive seen in hot volcanic pools,may be common in the universe.我曾在火山泥浆潭里看到的那种粘性物质 可能在宇宙随处可见But for complex life like plants and animals to evolve但是复杂生命像植物和动物如果进化requires an extraordinary sequence of events.则需要大量事件发生A nd ha ving tra veiled the world to make this series,在环游世界制作这个系列节目的时候what strikes me most is the incredible good fortune我最大的感触是地球its taken to make our planet a home for such rich and diverse life.能够成为如此丰富多样生命的家 真是不可思议的好运气To get an idea of just how lucky Earth has been,为了能够明白地球有多么幸运let me take you back to what I reckon is the most important day in Earths history.让我带你们回到 我所认为的地球历史上最重要的一天This one day was responsible for much of what makes Earth so special.让地球如此特别大部分原因归功于这一天And yet, it was just a chance event.但是,这只是偶然的事件201512/414006高密市治疗宫颈糜烂哪家医院最好的 青岛新阳光医院看妇科价格

枣庄子宫肌瘤多少钱Hi, Im Jessica嗨,我是JessicaAnd today Im going to shed some light on a chemical demonstration今天我要讲的化学演示I like to call ;anatomy of a glow stick;叫作;荧光棒解剖;There are many different kinds of chemical reactions化学反应有很多种Some absorb energy and some release energy有一些需要吸收能量,有一些则会释放能量Some release energy as heat and others as light释放能量的形式有时是热,有时是光and when a reaction produces light当反应生成光时the process is called chemiluminescence这个过程就叫作化学发光Lets watch MITs Dr. John Dolhun下面来看MIT的John Dolhun士his assistant Shannon他的助手Shannonand volunteers Sarah, Catherine, and Trevor以及志愿者Sarah Catherine和TrevorTheyre gonna show us some chemiluminescence at the Cambridge Science Festival在剑桥科学节上演示化学发光So not all reactions have this ability to produce lights并非所有化学反应都能产生光So we have to use some very special chemicals in order to do this为了实现这个目的,需要非常特殊的化学试剂And we have some light sticks that I broke apart here这里我破开了一些荧光棒If you guys just want to take these solutions请你们拿着这些溶液hold them carefully小心拿着And so in a light stick荧光棒中usually theres actually hydrogen peroxide通常会有过氧化氢and it oxidizes different chemicals --它能氧化不同化学试剂Please face the audience. Thats cool请对着观众,这很酷and itll oxidize different chemicals它能氧化不同化学试剂depending on what color you want to give a light取决于你想要什么颜色的光Alright, just pour one solution to the other. It doesnt matter which way好,请将一种溶液倒入另外一种中,两种方式都行And there we go, okay有了,很好Beautiful, beautiful, alright很美丽,很美丽,好So in each of these, we have a different chemical that gets oxidized这每一个反应中,都有不同化学试剂被氧化了to give us a different color从而得到了不同颜色Alright, thank you guys so much好,非常感谢你们So how does a reaction produce light?反应是如何发光的呢Lets start with two molecules. Lets call them A and B首先是两种分子,分别记作A和BThey react to produce C and D它们反应生成C和DEnergy thats produced in the reaction反应中生成的能量causes the electrons in D to become excited导致D中的电子被激发As the electrons relax back down, they give off energy as light随着电子返回基态,它们会以光的形式释放能量So basically chemical energy is transformed into light energy化学能被转化为了光能201501/353974 青岛市无痛人流费用青岛李沧区妇产医院怎么样



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