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治疗早泄福州哪家医院好福州市泌尿专科医院看男科好吗As they grow bigger and bigger,随着体积越来越大they start to spin and throw out a disk of debris它们开始旋转,甩出的碎屑形成盘状that will coalesce to form a solar system.在日后融合形成太阳系This kind of process is exactly the kind of process我们的太阳系that would have formed our solar system.就是这样形成的When we look at our solar system,在我们太阳系中all of the planets rotate around the sun in the same direction所有行星都以相同的方向绕着太阳旋转and they all are in the same plane而且都位于相同平面the same flat sheet around our sun,在相同的平面上绕着太阳旋转and this is exactly a consequence of the fact这是因为早期that the early solar system formed out of a broad disc.太阳系是在一个广阔的圆盘上形成的With the solar-system in place太阳系就定位之后all that is left is for the young star to light up.就等年轻的恒星开始发光When it happens it is sudden and irreversible.这个现象来得又快又急而且无法逆转Ultimately the process starts这个过程终究会发生and because it liberates so much energy with that first fusion,因为第一次融合会释放出惊人的能量then the process takes off.整个过程便一发不可收拾Um - it lights up a large area and it starts to shine on its own它照亮广阔区域within a matter of minutes.在短短几分钟内便开始自行发光Its a very quick process.这个过程很快In that first burst of light the star在第一波猝发的光线中has begun its lifelong activity as a factory恒星展开制造for making other chemical elements.其他化学元素的生涯Every atom in everything around us was made in the heart of a star我们周遭的一切原子都来自恒星的核心and all were made from the same starting ingredient.而且起始成分都一模一样The simplest element that we have is hydrogen宇宙间最简单的元素是氢and its actually the building block它是所有for all the other elements that we have.其他元素的基础材料In the heart of the sun hydrogen nuclei氢原子核也就是质子protons - are stuck together to make heliumlt在太阳的核心结合形成氦It sounds straightforward这听起来很简单but it can only happen in the most extreme conditions.但却只能发生在最极端的情况下In order for these protons to come together,质子要两两结合的话…because theyre both positively charged因为它们都带正电they dont want to come together,所以会互相排斥theyve actually got to be pushed together.必须要有外力压迫才行In order to do this you need very high temperatures所以需要很高的温度so theyre moving very fast and you also need very,让它们快速移动very high pressures.也需要极高的压力The only part of the sun that is hot and dense enough is the core.太阳唯一够热,密度够高的地方An area that contains over half the stars mass就是它的核心in less than 2 percent of its volume.太阳核心的体积不到太阳的2%Here at 15 million degrees the protons但质量却超过太阳的一半are bashed together so hard that they fuse.质子在一千五百万度的高温下猛然撞击、融合A helium nucleus is a tiny bit lighter氦原子核虽然由四个质子形成than the combined mass of the 4 protons it is made from.但重量却比四个质子轻一点And as Einstein tells us it is爱因斯坦告诉我们太阳的能量that tiny bit of lost mass that provides the power.来自这一点点流失的质量Energy is equal to mass times the speed of light,能量等于质量乘以times the speed of light.光速的平方201504/367805福州哪里治疗泌尿感染好 Another analysis that involved more than女性健康研究以30000名女性30,000 women was the womens health study为研究对象which was published in 2007 by Archives of由《内科医学档案》在2007年发表Internal Medicine. This study again compared这个研究再次将研究对象分为两组two groups of women. One group contained一组成员每天摄入1366毫克women who consumed 1366 mg of calcium或者更多的钙质or more per day and the second group consumed另一组成员每天摄入617毫克617 mg of calcium or less per day. Results或者更少的钙质of the study found a reduced risk of breast cancer研究结果表明was associated with the group of women每天摄取更多钙质的女性with the higher calcium intake when compared to与摄入钙质少的女性相比the group with the lower intakes.乳腺癌的患病几率会降低The study also only saw the reduced risk of该研究还发现breast cancer in pre-menopausal women.只有未绝经女性的乳腺癌患病几率会降低Throughout this presentation you have learned通过这个课件how vitamin D and calcium both play roles我们学习了维生素D和钙质in cancer prevention. The recommended intake for在癌症防治方面的作用calcium is 1000 mg per day which based on research钙质每天的推荐摄入量是1000毫克this amount is enough to reduce the risk of根据研究,这一摄入量足以能够降低colon cance and breast cancer in pre-menopausal women.直肠癌和未绝经女性乳腺癌的患病率The recommended intake for vitamin D is维生素D的每日推荐摄入量是400IU400 IU however this value is under debate.但是,这个数据是有争议的As research shows much higher levels of vitamin D are根据研究显示,想要预防癌症necessary to achieve the cancer prevention benefits.需要比这更高水平的维生素D摄入量There are many ways to incorporate both calcium在膳食中获取钙和维生素Dand vitamin D into your diet. Vitamin D can的方法有很多be consumed naturally in fatty fish such as维生素D能够从多脂鱼中获得tuna and salmon and in eggs. Many cereals例如金鱼,鲑鱼,还可以从鸡蛋中获得and milk products are also good sources of vitamin D很多强化的麦片和牛奶due to fortification. Calcium rich foods include milk,也是很好的维生素D来源yogurt and cheese but remember to choose富含钙的食物包括牛奶,酸奶和奶酪low fat varieties of each of these products.但是要注意选择低脂类Dark green, leafy vegetables such as broccoli,深绿色蔬菜和带叶蔬菜,例如花椰菜spinach and kale are also rich in calcium.菠菜和甘蓝都有丰富的钙质Many foods on the market today are also fortified如今,超市里有很多钙质和维生素D加强食物with both calcium and vitamin D such as例如果汁和大多数fruit juices and most breakfast cereals.早餐谷物食品By modifying your diet to include more foods在你的膳食中加入那些that contain vitamin D and calcium you may also富含维生素D和钙质的食物be reducing your risk for certain cancers as shown你也许会像本课程说的那样during this presentation. If reaching the降低某些癌症的发病率recommended intakes of both vitamin D如果仅仅通过食物and calcium through foods alone is not possible还不能达到维生素D和钙质的每日推荐摄取量your daily requirements can be obtained你可以通过使用with the use of dietary supplements.膳食补充剂来满足每日推荐摄取量201508/393660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。201604/435470建瓯市妇幼保健院有泌尿科吗

福州治疗乳头遛那家医院在做Nexen to cut 400 jobs in North America amp; UKNexen裁北美及英国400名员工Chinese-owned oil giant Nexen has announced 400 job cuts worldwide, blaming difficult trading conditions.中国石油巨头Nexen公司宣布将在全球裁员400人,以应对全球油价下挫。The bulk of the layoffs will be at the companys Canadian headquarters in Alberta.该公司位于加拿大阿尔伯塔的总部将进行大规模裁员。CCTVs correspondent in Canada, Kristiaan Yeo has more from Toronto.接下来我们关注央视驻加拿大通记者克里斯蒂安耶奥从多伦多为您发回的详细报道。201503/365997福州不孕不育三甲医院 The piece of meat processed by the more recent human ancestor在晚些出现的人类祖先咬过的肉上has a hole virtually all the way through it,可以清楚地看到一个几乎穿透的洞whereas the piece of meat processed by Australopithecus而南方古猿咬过的肉上barely has an indentation.几乎未留痕迹The teeth of our meat-eating ancestors我们食肉祖先的牙齿had become smaller and sharper,已变得更小 更锋利 just like our own.就像我们的牙一样Evidence reveals that the eating of meat据显示 食肉永远地改变了changed our evolution forever.我们的进化历程Our ancestors learnt to hunt,我们的祖先学会了打猎 developed sharper teeth,进化出了更锋利的牙齿and, above all, grew bigger brains.特别是 更大的大脑But if meat provided a powerful impetus for change,若肉类为这种改变提供了强大推动力it was nothing compared to what happened next.相比接下来发生的 它就微不足道了Cooking is huge.烹饪作用巨大 I think its arguably the biggest increase我认为在整个生命长河之中in the quality of the diet in the whole of the history of life.它带来了饮食质量的最大飞跃Cooked food lights up all our senses.熟食唤醒了我们所有感官The smell, the sight,嗅觉 视觉the touch触觉and of course, the taste当然还有味觉are amongst the great pleasures of existence.都沉浸在极大的愉悦之中201505/373824闽清县医院治疗包皮包茎多少钱

福州治疗淋病最专业的医院Mainland to lift entry-permits for Taiwan residents中国考虑废除台湾居民入境签The Chinese mainland will remove entry permit requirements for Taiwan residents,in a move to boost exchanges across the Taiwan Strait.为促进海峡两岸交流,中国大陆将废除对台湾居民的入境许可。The plan was announced at the seventh Straits Forum, which is the largest annual event for cross-strait exchanges.在两岸一年一度交流规模最大的活动—第七届海峡论坛上宣布了这一计划。Taiwan residents currently need to apply for a travel permit in order to enter the mainland.目前台湾居民往来内陆需要申请旅行。Official statistics show, Taiwan residents made 5.4 million visits to the mainland in 2014.官方统计数据显示2014年台湾540万居民往来。Thats up from 4.4 million in 2008.相比2008年的440万人比有了很大提升。While mainlanders made over 4 million visits to Taiwan last year, compared with only 280 thousand in 2008.去年由内地前往台湾的人次超过400万,而2008年只有28万。201506/381302 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。201601/421830福州中医院不孕不育科福州泌尿专科男科医院看男科怎么样



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