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榆树市马来闭壳龟长身蛇颈龟东部箱龟棱背泥龟缅甸孔雀龟百色闭壳龟价格怎么养当当乐园犍为县印度星龟密西西比红耳龟黄头侧颈龟东部网目鸡龟价格怎么养

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盐城市靴脚陆龟咸水泥彩龟安哥洛卡象龟凹甲陆龟红腿象龟价格怎么养凹甲陆龟饲养方法技术技巧挺胸龟怎么样好养吗 These large data sets allowed for这些大规模的数据a high level of statistical power to determine在统计学上反映出了correlations among dietary factors in disease occurrence.饮食因素和疾病发生之间的关联,具有很高的说力The conclusion of the work was that结论指出consumption of caffeinated coffee, tea or caffeine摄入含咖啡因的咖啡,茶or caffeine intake alone had no effect甚至咖啡因本身,都不会对on risk of either colon or rectal cancers患结肠癌或直肠癌的几率产生任何影响in either men or women.无论是对男性还是女性来说Of interest the researchers did find that有趣的是研究者确实发现consumption of two or more cups of decaffeinated coffee每天饮用两杯或以上脱咖啡因的咖啡per day significantly reduced the risk of rectal cancers.会显著降低了直肠癌的患病几率As with all human studies it is not possible to determine所有人的研究都很难指出what specific components of coffee咖啡中究竟是什么成分may be responsible for these effects.才能产生这些效应Many lifestyle factors impact risk of cancer很多生活方式的因素会影响得癌症的几率and although the research factors these尽管这个研究into their statistical analysis在统计分析考虑到了这些it is not fully possible to但是不太可能完全eliminate the impact of these factors.消除它们的影响Now lets take a look at caffeines role现在让我们看看咖啡因in tea, coffee and cancer.在茶,咖啡,和癌症中的作用How much caffeine do you consume daily?你每天摄入多大量的咖啡因?And why do you drink caffeinated drinks?你为什么喝含有咖啡因的饮品?Caffeine is found in several beverages and foods.咖啡因存在于好几种饮品和食物中This chart compares the amounts of caffeine这个表对咖啡和茶中的咖啡因含量found in coffee and tea.进行了比较As you can see coffee is你们可以看到咖啡中的significantly higher in caffeine content than tea.咖啡因含量比茶里的高很多The way coffee is prepared also咖啡的制作方法affects the amount of caffeine in the beverage.也会影响其咖啡因的含量Black, white and green teas红茶,白茶,和绿茶的also contain measurable amounts of caffeine.咖啡因含量也很可观This may be surprising to some people一些认为绿茶不含咖啡因的人who may think that green tea is caffeine free.也许会感到很惊讶Decaffeinated teas have very low amounts of caffeine脱咖啡因的茶含有很少量的咖啡因and are a good alternative它是个不错的选择if you are interested in limiting caffeine intake.如果你想控制咖啡因的摄入The caffeine content in brewed coffee煮制的咖啡里所含咖啡因的量averages between 100 and 200 mg per cup.为平均每杯100到200毫克While the amount in regular tea而普通茶中的含量ranges from about 40 to 100 mg.约为每杯40到100毫克This chart lists a variety of beverages,这张图标列出了多种饮料foods and medicines with their caffeine content.食品和药品及它们的咖啡因含量Note that caffeine content is not required要注意的是咖啡因含量并不要求to be included on the food label.在食品标签上标出So finding the amount of caffeine in a product所以要想知道一种产品的咖啡因含量may take some investigation.可能要做一些调查There are several websites有几家网站上where this information can be found能找到有这方面信息including those of the manufacturer of the product它们包括该产品制造商的网站and also at the Mayo Clinic nutrition website.以及梅奥诊所的营养网站Where does your favorite beverage compare?你最喜欢的饮品有什么好处?Are you surprised by where it falls你会因其in comparison to other products?劣于其他产品而惊讶吗?Something that may be surprising is也许令人惊讶的是the amount of caffeine in two tablets of两片强效伊克赛锭所含的咖啡因extra strength Excedrin is 130 milligrams.有130毫克This is about the amount provided这相当于将一杯咖啡中的咖啡因in a cup of coffee and is delivered in two pills.转移到了两个药片里Now that you have an idea of既然你们已经了解了how much caffeine is in some popular beverages一些流行饮品中咖啡因含量lets take a look at how caffeine affects the body.让我们来看看咖啡因是如何影响身体的201507/383461When the family went to India it was arranged that Stephen should come and live with us for a year.我们一家到了印度 史蒂芬也来和我们一起住一年He decided it would be nice that we should have...Scottish dancing in the evening.他认为我们 晚上应该跳苏格兰舞是很好的Mind you, this was quite an ordinary house.but we had rather a lot of room and a large hall.提醒你一下 这是一间很普通的房子 但是我们有很多房间和一个大厅and so we bought some records.and a book about what to do and Stephen took charge.我们买了一些唱片 和一本消遣的书 史蒂芬开始主持And he insisted you put on a jacket and a tie.And then he was the master of the proceedings.他坚持让你穿夹克打领带 他来当晚会的主持And Stephen took it very seriously.But then he liked dancing, you see?史蒂芬很认真地在做 但他喜欢跳舞 发现了吗There were four physicists in my year Gordon Berry.Richard Bryan.Stephen.myself.有四位物理学家与我同级 戈登·贝瑞 里查德·布莱恩 史蒂芬 和我自己I first remember Stephen.on an occasion when Gordon and I went up after dinner to his room to try to find him.我对史蒂芬最初的印象是 有一次 我和戈登吃完饭去史蒂芬的房间找他And Stephen was up there with a crate of beer slowly drinking his way through it.史蒂芬正在那里 那儿有一箱啤酒 慢慢地喝着啤酒He was only 17. He couldnt legally go into a pub.Hed gone up to Oxford ridiculously early.他只有17岁 不允许去酒吧 他很小就去了牛津大学读书We used to have what we called a gathering net.我们常常聚会We used to organize a beer party and various things like that to gather all these collar as many freshman as we could get to get them to join the Boat Club.组织啤酒派对或者类似的活动 以邀请尽可能多的新生 让他们加入划船俱乐部And thats how we collected him, you see?我们就是这样认识他的201603/433660苏卡达象龟多少钱一只

社旗县印度棱背龟佛罗里达红肚龟黄腿象龟中部锦龟安南龟海龟扁头长颈龟价格怎么养The 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欧洲陆龟品种介绍种类区别 海淀区花龟亚达伯拉象龟金头闭壳龟黑颈乌龟金钱龟大头乌龟价格怎么养

来宾市马来闭壳龟长身蛇颈龟东部箱龟棱背泥龟缅甸孔雀龟百色闭壳龟价格怎么养栏目简介:《趣味科普英语视频》有着浓厚的趣味性,能够增加英语学习爱好者对英语科普知识的兴趣,从而更加开心快乐地学习英语知识,建立起英语学习的基础,为以后学习更多的英语知识奠基,快来边看视频边涨姿势吧!201509/399819 地龟怎么养图片批发价格刺山乌龟精品幼犬鬼多少钱一只

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