硫酸 2-胺-5-硝苯酚

VOA慢速英语-Health Report - New Findings Add to Health Concerns

This is the VOA Special English Health Report. Bisphenol A is a chemical widely used to make hard, polycarbonate plastic. Food storage containers, reusable water bottles and baby bottles are among the many different products that may contain BPA. BP

发表于:2018-12-15 / 阅读(130) / 评论(0)

VOA慢速英语2008年（九）月

SSS 2012-08-20

This is scientific American sixty seconds science. I am Amy Kraft. Got a minute? Sweat potatoes contains fiber, vitamin A and calcium, but the way that scientists think they can make them even more healthful is literally shocking. Researchers found t

发表于:2018-12-24 / 阅读(82) / 评论(0)

Scientific American(八)月

SSS 2009-01-23

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. As Valentines day approaches, remember, its the thought that counts. Just ask a decorated cricket. Because according to a study published in the January

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Scientific American(一)月

专业术语—基因专业词汇A/B

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医务英语

麻省理工学院公开课：单变量微积分03：求导四则运算及三角函数导数

分集介绍：导数，商数，正弦和余弦 Derivatives.of.products.quotients.sine.cosine

发表于:2019-01-05 / 阅读(347) / 评论(0)

麻省理工学院公开课：单变量微积分

麻省理工学院公开课：单变量微积分01：导数和变化率

分集介绍：导数，斜率，速度与变化率 Derivatives.slope.velocity.rate.of.change

发表于:2019-01-05 / 阅读(348) / 评论(0)

麻省理工学院公开课：单变量微积分

英语游戏:愚蠢的香肠

[全屏观看] 点击右键- 另存为可保存这个Flash影片 Silly Sausage是Nitrome于2011年5月28日发行的一款益智类游戏，它是以香肠在尽量不碰到其它损失生命物体的情况下吃光所有的钻石再到达终点为标

发表于:2019-01-08 / 阅读(193) / 评论(0)

英语对接游戏

AP美联社一分钟新闻 2008-09-17

1. The Dow Industrials rose nearly 142 points after more than a 500-point drop Monday. The move came as the Fed left interest rates unchanged and also pumped 70 billion dollars into the financial system. 2. Residents of Galveston in Texas have been

发表于:2019-01-11 / 阅读(195) / 评论(0)

美联社新闻一分钟2008年(九)月

Protamine Sulfate Injection

Protamine sulfate is a drug that reverses the anticoagulant effects of liver compounds such as heparin. Protamine is extracted from the sperm of salmon and other species of fish, and then made into a protamine sulfate injection which is a necessary d

发表于:2019-01-19 / 阅读(113) / 评论(0)

世界各地新闻集锦

经济学人152:攻破屏障

Science and technology 科学技术 Creutzfeldt-Jakob disease 克雅氏病 Breaking down the barrier 攻破屏障 A glimmer of hope for a drug that treats disease caused by prions 药物治疗朊病毒感染疾病的一线希望 THE epidemic of mad-c

发表于:2019-01-26 / 阅读(159) / 评论(0)

经济学人科技系列

经济学人107:克雅氏病攻破屏障

Science and Technology Creutzfeldt-Jakob disease Breaking down the barrier 科技克雅氏病攻破屏障 A glimmer of hope for a drug that treats disease caused by prions 药物治疗朊病毒感染疾病的一线希望 THE epidemic of mad-cow dis

发表于:2019-01-26 / 阅读(139) / 评论(0)

经济学人科技系列

SCIENCE REPORT - Red Wine and Heart Disease

SCIENCE REPORT – January 9, 2002: Red Wine and Heart Disease By George Grow This is the VOA Special English SCIENCE REPORT. British scientists may have discovered the reason why red wine appears to

发表于:2019-01-30 / 阅读(130) / 评论(0)

科技之光

HEALTH REPORT - New Heart Drug Shows Promise in African Amer

HEALTH REPORT - New Heart Drug Shows Promise in African Americans By Cynthia Kirk Broadcast: Wednesday, November 17, 2004 This is Bob Doughty with the VOA Special English Health Report. Heart failure

发表于:2019-01-30 / 阅读(131) / 评论(0)

健康与经济

EU bans sale of baby bottles containing Bisphenol A

BRUSSELS, May 31 (Xinhua) -- Baby bottles containing the substance Bisphenol A (BPA) would have to be pulled from the shelves across the European Union (EU) starting from Wednesday, in a milestone move to better protect the health of EU citizens, an

发表于:2019-02-08 / 阅读(123) / 评论(0)

英语新闻

茶与牛奶一起喝有害健康

Tea has complex compounds called polyphenols which are believed to help the arteries to relax or dilate, thus enabling a smoother flow of blood. 茶中含有一种叫多酚的复杂混合物。这种物质据信能帮助放松或扩张动脉，从而使

发表于:2019-02-17 / 阅读(157) / 评论(0)

实用英语

听播客学英语 139 多丽丝·莱辛

Today we go on a journey. It starts in Sweden over 100 years ago; and then moves to London; and finally moves to future worlds and other planets. But we start in Sweden. Alfred Nobel spent his life finding ways to blow things up. He was born in 1833

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听播客学英语

【英语时差8，16】全球变暖2

We keep pumping carbon dioxide into the atmosphere and the earth keeps warming. Climate scientists have predicted that the consequences of unchecked warming could result in everything from catastrophic flooding to larger and more deadly hurricanes. S

发表于:2019-02-23 / 阅读(109) / 评论(0)

英语时差8，16

英语听书《海底两万里》第170期第12章一切都用电(3)

First off, I'll mention that at the bottom of the sea there exist veins of zinc, iron, silver, and gold whose mining would quite certainly be feasible. 首先，我对您说，海底有锌、铁、银、金等矿藏，开发并不是不可能的事。

发表于:2019-02-25 / 阅读(192) / 评论(0)

《海底两万里》中英双语有声读物

访谈录 2012-09-24&09-26 专家访谈：红酒有益健康

听力内容有不详尽之处啊，欢迎大家留言讨论，纠正。谢谢在线英语听力室http://www.tingroom.com Wed wines,it contains polyphenol, which have anti-accident properties.And those are known to accede lower our blood pressure b

发表于:2019-02-28 / 阅读(127) / 评论(0)

访谈录2012年

【英语时差8,16】有机蔬菜真的更健康吗？

Every time i go to the grocery stores，i consider buying Organic vegetables because they are supposed to be healthier or something，but they are also moreexpensive. So is it worth it to pay more for the supposed health benefits? Well, it might be w

发表于:2019-03-06 / 阅读(128) / 评论(0)

英语时差8，16

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