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包头做无痛人流医院哪个好飞排名快交流网

楼主:飞度管家好医院 时间:2018年02月23日 18:25:33 点击:0 回复:0
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TED演讲集 那些匪夷所思的新奇思想201509/400095TED演讲集 那些匪夷所思的新奇思想201509/400093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。201510/400308TED演讲集 那些匪夷所思的新奇思想201510/402545The line around the valley shows where the ice used to reach.可以看到山谷周围冰层曾经到过的痕迹Its like a high tide mark.就像深深的潮痕This change has had a devastating effect.这种变化的影响是极具破坏性的Where the glacier meets the ocean, the result is clear.在冰河与海洋交接的部分便能看到后果Chunks of ice are falling into the sea 30 times faster than before.大块的冰块以比过去快三十倍的速度落入海洋中As the ice gets thinner, the process accelerates.更多的冰层在塌陷,整个过程还在加速Since 1980, the Columbia has retreated over nine miles.从1980年至今,哥伦比亚冰河已经缩短了十五公里In fact, in the past 50 years,it could have very serious consequences.实际上,过去五十年 全世界的冰河都缩短了The floating ice shelves that surround Antarctica are also disintegrating.南极周边漂浮的冰原也正在破裂This one collapsed in just five weeks,这个坍塌发生在五星期以前destroying an area of ice in excess of 1,100 square miles.大小有1100平方英里There is now no doubt that the worlds ice is in retreat.毫无疑问,世界的冰层正在缩小Its melting at a phenomenal rate,它以惊人的速度融化and its likely to accelerate over the next few years.融化的速率在以后可能还会加快Its still not possible to say for certain how much ice on the planet will vanish, or how fast.虽然还不能确定的说 地球上的冰层将会消失得多快For the planet, being without ice will be nothing unusual对与地球来说没有冰并没有什么不同But for humans, the loss of ice how much ice on the planet will vanish, or how fast.对于人类,失去了冰川 将成为出现文明以来It will be the most visible change on the Earth since the dawn of civilisation.地球发生的最为显著的变化201511/406927

The educational materials presented here今天展示的教育材料were developed by students and faculty是由爱荷华州立大学营养学of the department of food science and human nutrition和人体营养学系的at Iowa State University.学生和老师提供的Funding for this project was provided by grants该项目的资金由from the American Cancer Society Mid West美国中西部地区癌症协会and the Lance Armstrong Foundation.及兰斯,阿姆斯斯壮基金会提供The materials are intended for educational use这些材料仅用于教学and are not meant to provide medical advice.并非用以提供医疗指导We welcome your feedback about these materials.欢迎大家对这些材料做出反馈Please use the evaluation survey link on the homepage请用主页上提供的调查评价链接to provide your comments and suggestions.提交你们的和建议The markets are full of dietary supplements市场上充斥着很多补品and it is difficult to know which, if any, might be useful很难辨别哪个也许有用to promote health, resist disease or improve wellbeing.可以促进人体健康,抵御疾病,提高身体素质This presentation will outline the basic information今天的演讲会提供about dietary supplements有关补品的基本信息and provide helpful information也会提供一些实用的信息about their contributions to a healthy lifestyle.说明补品对健康生活方式的贡献A supplement is intended to supplement the diet.补品的用途在于补充膳食The main feature of a supplement一种补品的主要特征是is that it is very different from a food.它与食物大不相同It contains one or more ingredients such as a vitamin,它含有一种或多种营养成分,例如维他命mineral, botanicals or herbs and is intended to矿物质,草本植物,草药等,它是用来be taken orally in pill, capsule, liquid or tablet form.口的,有丸剂,胶囊剂,液体剂或者片剂等Supplements are labeled as supplements补品一般都会在其商标说明上注明on the front panel. In the picture shown here从这张图片大家可以看到you can see that this particular vitamin supplement这种补品included calcium and vitamin D含有钙和维他命Dwhich are 2 ingredients and it is taken orally这两种营养成分,用方法是口in the form of a tablet and it is labeled as补品是片剂形式,商标上注明了a supplement on the front panel.它是一种补品Vitamin and mineral supplements维他命和矿物质补品have been available to consumers for over 100 years.消费者已经使用了100多年了These products are typically mixtures这些补品主要是混合物of known essential nutrients in quantities由一些大家熟知的常规营养物构成defined by the national academy of sciences由美国国家科学院的院士们命名and the recommended dietary allowances还有推荐的膳食营养素供应量or the RDA. The label on these supplements或被称为RDA,这些补品上的商标defines the percent of the RDA that is met by都注明了RDA的百分比,一般是1 of the dose of the product. In general用补品的一剂,一般来说vitamin and mineral supplements are safe用维他命和矿物质补品是安全的to be consumed when they contain around 100%条件是它们含有大概100%的RDAof the RDA. Supplements with much more than补品RDA超过这个值的the RDA, 200% or greater, are not necessary比如达到200%或者更高,就不必要了and may cause toxicity.这也许还会产生毒性So when are vitamin supplements advisable?所以什么时候用维他命补品比较合适呢Vitamin B12 supplements are advisable for individuals维他命B12适用于那些over the age of 50 who have trouble50岁以上,并且很难absorbing this vitamin naturally.自然吸收这种维他命的人Folic acid supplements may be advisable维生素B适用于to women who may become pregnant快要怀or are pregnant in order to decrease the likelihood或已经怀的女性,这样可以降低怀有of having a baby with neural tube defects.一个神经管畸形婴儿的风险Vitamin D supplements are also advisable to individuals维他命D适用于who do not get enough exposure to the sun那些很少晒太阳and who do not get enough vitamin D而且没有吸收足够维他命D的人through fortified product. Calcium is sometimes尽管他们食用了富含维他命D的食物,钙比较also advised for bone health in mostly women.适用于大多数女性,可以促进骨骼健康Herbal supplements are different than vitamin草药补品与维他命and mineral supplements because there are no和矿物质不同,因为没有known requirements for herbal compounds标准规定用哪些草药补品to maintain health. This means that以保持身体健康,也就是说there is no RDA for herbal ingredients.草药补品没有规定的RDAHerbal supplements are mixed with compounds草药补品是由化合物混制的derived from plants and algae这些化合物提取自植物和藻类that some supplements may also contain ingredients这些植物和藻类也许还含有from animal sources such as fish oil动物身上如鱼油or pancreatic extracts.或胰腺中的养分Our understanding of herbal supplements我们对草药补品的认识is derived form traditional medicine practices来自多年来很多of many civilizations for many, many years.文明的传统医学In these cultures healers use在这些文化中,医生使用naturally occurring products to treat ailments天然药物来医治疾病and out of these practices modern medicine arose.现代医药就来自这些实践All dietary supplements sold in the US美国销售的所有补品must comply with strict labeling laws.必须严格遵守商标法On the front panel the label must include商标必须附有a statement of identity indicating the composition补品合成物的说明of the product and the net quality of contents.以及各成分的净重The label also must contain a list of ingredients商标还应包括某一种补品的成分in a particular supplement and other ingredients并且降序标出in descending order of pre dominance其他主要营养成分and by common name or proprietary blend.用其通用名称或者专利合成名201502/359327

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,让我们边看视频边学英语。正宗地道的口语,假一罚十。美剧电影真人秀都看过了之后还能看什么学口语呢?当然是看这些双语视频啦!又好玩,又原汁原味,又顺便学一两句地道英语,多痛快!快来看看吧!201603/430929

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