福州治输卵管堵塞费用度排名动态新闻网

来源:搜狐娱乐
原标题: 福州治输卵管堵塞费用飞度医院排行榜
Get it right, and the ship would be pulled into orbit,如果一切正常,宇宙飞船就会进入a giant circle 30 million miles in diameter.一个直径为3000万英里的巨型圆轨道Here it would be safe.在这里它就安全了Its speed would be enough to keep it from falling any further in.它的速度足以避免其坠入黑洞If a space agency were controlling the mission from earth or如果某航天局从地球或其他任何anywhere else far away from the black hole,远离该黑洞的地方远程操控该任务theyd observe that each full orbit took 16 minutes.会发现飞船沿轨道运行一周需16分钟But for the brave people on board,但是对于飞船上勇敢的宇航员close to this massive object,由于接近质量巨大的物体time would be slowed down.时间将会减慢And here the effect would be far more extreme than而这一位置上的减慢效果远比near the pyramid or planet earth.在金字塔或地球附近显著The crews time would be slowed down by half.宇航员的时间将减慢一半For every 16-minute orbit,每16分钟的轨道运行theyd only experience 8 minutes of time.他们实际只需用8分钟时间Round and round theyd go,一圈又一圈experiencing just half the time of宇航员度过的时间everyone far away from the black hole.只有远离黑洞人们的一半The ship and its crew would be traveling through time.飞船将载着宇航员在时间中穿行Imagine they circle the black hole for 5 of their years,试想宇航员绕着黑洞转了5年10 years would pass elsewhere.相当于地球上过了10年When they got home,他们返航时everyone on earth would have aged 5 years more than they had.地球上所有人的年龄都比他们多增长5岁The crew of the spacecraft would return to a future earth.宇航员们回到的是未来的地球They would have made a journey not only in space, but in time.他们应该经历了一段空间更是时间的旅行So a supermassive black hole is a time machine.因此特大质量黑洞就是一个时间机器But of course its not exactly practical.当然,这并不完全可行It has advantages over wormholes in that it doesnt provoke paradoxes.它优于虫洞的地方是不会产生悖论Plus it wont destroy itself in a flash of feedback.并且不会在反馈瞬间摧毁自身But its pretty dangerous.但它仍然非常危险Its a long way away.行路迢迢And it doesnt even take us very far into the future.而且也不能将我们带入非常久远的未来201507/387885栏目简介:《跟jade老师学英语》是英语视频听力下面的子栏目,来之英伦的美女老师jade,一口纯正的伦敦腔,听上去就是一种享受,最重要的是妈妈再也不用担心我看不懂权利的游戏了。通过视频讲解,英语学习爱好者能够更好地理解英语知识内容,培养英语学习的兴趣,是提高英语水平的好伙伴。201510/400295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。201512/406367

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。201503/365765

The Roman merchants are granted an audience In the imperial palace.这些罗马商人在皇帝的宫殿内 做了次观众Emperor Huan.He came to the throne age 14,汉桓帝 十四岁登基And purged his family from the court.把他的家人从宫廷里肃清出去The most powerful man in the eastern world.是东方世界里最具权势之人Trade has fascinating effects,贸易有着吸引人的力量it involves the exchange of goods,它不仅包括商品间的交换but it also involves the contact of people from different places.也包括来自五湖四海的人们之间的联系People are meeting each other,speaking each others languages,人们彼此会面 说着各自的语言adapting to each others cultural practices,逐渐适应对方的文化习惯learning about each others traditions.去学习对方的传统The world becomes a more interconnected place,when trade is going on.随着贸易往来的进行 世界各地间的联结更加紧密The emperor welcomes the Romans,But doesnt let on how silk is made.皇帝热情迎接了这些罗马人 但并未让他们知道丝绸的制作方法Today, it is no longer a secret.如今 这已经不是什么秘密了Silk is a natural fiber spun by silkworms.丝绸是蚕吐出的一种天然纤维Their larvae produce a single th to make cocoons.蚕宝宝吐出一种细丝结成茧It takes 2,000 silkworms to make a pound of silk.产出一磅丝绸需要两千只蚕For the next 300 years,China remains the worlds great exporter of silk.在接下来的三百年里中国仍旧是世界的丝绸出口大国201510/404666This god creates life, destroys it...这个神祇创造了生命,也会摧毁生命...and demands we keep out distance要求我们保持距离This comet strayed too close这个彗星太靠近太阳了The Suns heat is boiling it away...它被太阳的热量蒸发...creating a tail that stretches for millions of miles.产生绵延数百万英里的彗尾Its freezing in here.这里冰冷彻骨Theres no doubt where this comets from, the icy wastes of deep space我们清楚彗星来自哪里,它来自深太空的冰冻垃圾But all this steam and geysers and dust...但你看这些蒸汽、间歇泉和尘埃...its the Sun again, melting the comets frozen heart.这是太阳正在融化彗星的冰冻核心Strange.太奇异了A kind of vast, dirty snowball, covered in grimy tar犹如外面包裹着肮脏沥青的巨大脏雪球Tiny grains of what looks like organic material...看起来像是有机物的小颗粒...preserved on ice, since who knows when...被冷冻保存,谁会知道已经保存了多久...maybe even the beginning of the solar system.也许和太阳系同龄Say a comet like this crashed into the young Earth billions of years ago.如果像这样一颗彗星在数十亿年前撞到年轻的地球Maybe it delivered organic material and water也许带来了生命原始物质......the raw ingredients of life ...有机物和水It may even have sown the seeds of life on Earth...彗星甚至可能在地球上播下生命之种...that evolved into you and me后来进化成你和我But say it crashed into the Earth now如果彗星现在撞上地球Think of the dinosaurs, wiped out by a comet or asteroid strike想想恐龙吧,被彗星或是小行星的撞击彻底灭绝Its only a question of time.这只是时间问题Eventually, one day, well go the way of the dinosaurs毫无疑问,总有一天我们会步恐龙的后尘If life on Earth was wiped out, wed be stuck out here...如果地球上的生命灭绝了,我们会被困在这里...homeless, adrift in a hostile universe无家可归,漂泊在危险宇宙中Wed need to find another home我们需要找一个新家Among the millions, billions of planets...在几百万甚至数十亿的行星中...there must be one thats not too hot, not too cold, with air, sunlight, water...一定会有一个行星不会很热,也不会很冷,有空气、阳光和水...where, like Goldilocks, we could comfortably live可以让我们舒适居住,生活The red planet红色行星Unmistakably Mars.我们都熟知的火星For centuries, weve looked to Mars for company...几个世纪以来,我们一直都在寻找火星上的同伴...for signs of life寻找生命迹象201505/377449栏目介绍:搞笑英语轻松学通过不同的搞笑生活片段来学习日常口语,领域涉及生活的各个方面,让我们既可以学习到地道的口语,还能够爆笑一番。快来看看吧。201508/393172

TED演讲集 那些匪夷所思的新奇思想201511/407016

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。201604/431270栏目简介:《英语学习入门视频》是英语视频听力下面的子栏目,栏目内容适合刚刚接触英语学习不久的童鞋学习。视频内容比较简单易懂,是入门英语知识的基础,有助于帮助英语学习爱好者逐步掌握基本的英语知识。201511/408307The educated materials presented here这里所用的教学材料were developed by students and faculty由爱荷华州立大学of the Department of Food Science and Human Nutrition食品科学与人类营养学系at Iowa State University.师生共同制作完成Funding for this project was provided by grants本项目的赞助资金来源于from the American Cancer Society Midwest美国中西部癌症学会and the Lance Armstrong Foundation.以及兰斯,阿姆斯特朗基金The materials are intended for educational use此材料仅供教育教学使用and are not meant to provide medical advice.不能作为医学指导We welcome your feedback about these materials.我们欢迎您有关本材料的反馈Please use the evaluation survey link on the homepage请登陆主页点击评估调查链接to provide your comments and suggestions.告诉我们您的意见和建议Today we will be discussing food allergies.今天我们讨论的是食物过敏A food allergy is also known食物过敏是as a food hypersensitivity and occurs一种食物过敏症when a normally harmless food elicits由正常情况下an immune response to the allergen无害的食品引发的which is usually a protein.免疫系统对过敏原的反应This immune response involves a release of这里的过敏原通常是一种蛋白质antibodies to fight the allergen and in turn这种免疫反应包括抗体的释放this immune response brings upon来对抗过敏原the symptoms of food allergy.同时这种反应就会带来食物过敏的症状Allergic or immunological reactions are这些过敏和免疫反应被分为抗体classified into IgE mediated andIgE介导型non-IgE mediated reactions.和非IgE介导型反应IgE is an antibody that is formedIgE是免疫系统by the immune system in response to为了对抗它认为对人体有害的物质a substance that the body deemed harmful.而释放的一种抗体IgE antibodies elicit an immune responseIgE会引发免疫反应causing histamine and other chemicals这种免疫反应会导致组胺和其他物质的释放to be released and causes symptoms of an allergy.从而引发过敏症状If the response occurs several hours如果在进食之后几个小时or a few days after consuming the food甚至是几天后才出现过敏反应it is most likely a non-IgE response那么极有可能这是一种非IgE介导型反应which typically involves gastrointestinal symptoms主要出现的是胃肠症状such as nausea or stomach cramping.比如恶心和胃痉挛Typically IgE mediated reactions occur典型的IgE介导型反应一般a few minutes to within an hour of consumption出现在进食后几分钟到一小时的时间内and these symptoms include anaphylaxis and urticaria.症状包括过敏性反应和荨麻疹Anaphylaxis is an acute, potentially life threatening过敏性反应是一种严重的可能会威胁生命的hypersensitivity reaction defined by过敏症状a number of signs and symptoms一般包括以下症状ranging from coughing, airway constriction,咳嗽,气道狭窄abdominal pain or faintness to chest pain腹痛,晕厥,胸部疼痛and the loss of consciousness.和失去意识It can range from mild to severe.这些症状可能比较轻微,也可能非常严重Most cases are mild but any anaphylaxis has大多数病例的反应都比较温和the potential to become life threatening.但任何一种过敏反应都会有威胁生命的可能Urticaria is a skin reaction usually荨麻疹是一种皮肤上的反应accompanied by swelling and itching.通常伴有肿胀和瘙痒Symptoms of food allergies vary每个人的食物过敏症状都不同between individuals but the most common are但是最常见的swelling, sneezing, nausea, digestive problems,包括肿胀,打喷嚏,恶心,消化不良hives or swollen airways.荨麻疹以及气道肿胀Others include itchy eyes, hives, skin rash,其他一些症状包括眼部瘙痒,荨麻疹,皮疹tightness of the throat, shortness of breath,喉咙发紧,气短runny nose, abdominal pain, nausea,流鼻涕,腹痛,恶心vomiting and diarrhea.呕吐和腹泻We will now discuss foods most commonly我们现在讨论通常会出现associated with allergic reactions.过敏性反应的食物过敏Milk, eggs, wheat and soy are frequent allergies牛奶,鸡蛋,小麦和大豆是在儿童中常见的that many children have but will grow out of.引发过敏的食品,但随着年龄增长会逐渐消失On the other hand an allergy to peanuts, tree nuts,而另一方面,对花生,干果fish and shellfish tend to be lifelong conditions.鱼类和贝类的食物过敏却会伴随人的一生Adverse food reactions consist of不同食物过敏反应包括对不同食物a variety of responses to food or food additives和食物添加剂的that are consumed.过敏反应The majority of these responses are not allergenic这里的大多数并不是过敏性反应but caused by food intolerance and只是由食物耐受不良caused by particular food properties或者某种食物的性质所导致such as caffeine causing irritable bowel syndrome,比如咖啡因会引发肠道易激综合症metabolic disorders such as lactose intolerance以及代谢失常,比如乳糖不耐症resulting from a lack of an enzyme是由体内缺乏一种酶导致的to break down lactose in milk or food这种酶可以分解牛奶中contaminated with bacteria.或者被细菌污染的食物中的乳糖成分Psychological reactions to food can also lead to对食物的一些心理反应也会导致the belief of the prevalence of a food allergy.相信食物过敏的普遍存在201506/378916

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