【有机化学】二羟乙基硫化物

字源大挪移 Prefix - 表示数字的字首 43 di-,dicho-

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发表于:2018-12-04 / 阅读(193) / 评论(0)

英文魔法师字源大挪移

VOA慢速英语2014 科学家们寻找新的方法来对付蚊子

AS IT IS 2014-05-25 Scientists Search for New Ways to Stop Mosquitoes 科学家们寻找新的方法来对付蚊子 The sound of a mosquito can mean trouble in many parts of the world. The bite of a mosquito can be deadly. Today, we will hear about s

发表于:2018-12-08 / 阅读(187) / 评论(0)

2014年VOA慢速英语(五)月

VOA双语新闻：3、美科学家研发新一代驱蚊剂

美科学家研发新一代驱蚊剂 In many regions of the world, mosquitoes are a seasonal pest. In other regions, they carry serious diseases like malaria. The World Health Organization estimates that almost 630,000 people died of malaria-related

发表于:2018-12-19 / 阅读(141) / 评论(0)

VOA双语新闻 2014年1月

CNN 2009-11-25

I couldn't get over this mess. The federal government is confirming what Joan Glickman of Pompano Beach, Florida suspected all along. Tainted drywall from China is giving off a harmful gas that's turning her air-conditioning wiring black, causing it

发表于:2018-12-20 / 阅读(130) / 评论(0)

cnn2009年(十一)月

不择手段背单词(739):bedizen把…装饰得过分华丽而

bedizen, [bi'diz(ə)n] v 把装饰得过分华丽而俗气；穿着俗丽【记】bed床

发表于:2018-12-30 / 阅读(172) / 评论(0)

不择手段背单词

60秒科学:Mercury Fillings Seem Safer over Time

Mercury Fillings Seem Safer over Time A study in the journal Chemical Research in Toxicology finds that mercury on the surface of dental fillings slowly turns to an inert sulfide compound, which should keep the mercury from harming the nervous system

发表于:2019-01-02 / 阅读(195) / 评论(0)

60秒科学

专业术语—中草药成分英汉对照词汇H2

Humulone 律草酮 Huperzine Serrate P.E 千层塔提取物 Hydroginkgolic acid 氢化白果酸 Hydroginkgolinic acid 氢化白果亚酸 p-Hydroxyacetophenone 对羟基苯乙酮 p-Hydroxybenzylalcohol

发表于:2019-01-03 / 阅读(136) / 评论(0)

医务英语

Garlic: The Key to a Long Life?

From VOA Learning English, this is the Health Lifestyle report. Garlic is one of the most common cooking ingredients around the world. Many dishes in Europe, Africa, Asia and the Americas use this strong-flavored vegetable. Garlic is similar to other

发表于:2019-01-12 / 阅读(186) / 评论(0)

2016年VOA慢速英语(十二)月

VOA标准英语2012--Researchers Say Malaria Drug Could Also Treat Cancer

Researchers Say Malaria Drug Could Also Treat Cancer Scientists know that human cancer cells grow by getting energy from adjacent tumors, where cells have begun to self-destruct. The spread of cancer is accelerated by the death of these cells. This p

发表于:2019-01-13 / 阅读(174) / 评论(0)

VOA标准英语2012年(三月)

VOA常速英语2014--Promising Mosquito Repellent Announced 美科学家研发新一代驱蚊剂

Promising Mosquito Repellent Announced美科学家研发新一代驱蚊剂 In many regions of the world, mosquitoes are a seasonal pest. In other regions, they carry serious diseases like malaria. The World Health Organization estimates that almost 6

发表于:2019-01-14 / 阅读(149) / 评论(0)

VOA标准英语2014年(一月)

Shappi Korsandi – Stand up

BBC Learning English Weekender Shappi Korsandi Stand up Callum:Hello, I'm Callum Robertson and this is Weekender. The Edinburgh International festival is a month-long arts and cultural festival held in August in Scotland's capital city, Edinburgh. A

发表于:2019-01-16 / 阅读(431) / 评论(0)

Weekender

白领英语晨读-011 To Attract Police　吸引警察

One Police stops on police vehicle outside one Victoria's Bar. After the preparation, as necessary arrests?, this liquor drive slightly mixes. Suddenly he sees to have a young people shakely goes out from bar, spend the many figures only then finds

发表于:2019-01-17 / 阅读(111) / 评论(0)

白领英语晨读

英语听力文摘 English Digest 505、不能不说的秘密

Black Tongues and Stomach Aches Don: Oh, no, Ya?l, I think I'm having a medical emergency. Quick! Call an ambulance. Ya?l: A medical emergency, Don? Are you sure? You look fine to me! D: But I'm not. This morning, I had a terrible stomach ache. And n

发表于:2019-01-26 / 阅读(119) / 评论(0)

英语听力文摘 English Digest

英语听力文摘 English Digest 70、细菌可除臭?

Sewage stinks. But bacteria can make it smell better. Oh, yeah? That's true. Certain forms of bacteria feasting on sewage give off hydrogen sulfide, a really malodorous chemical, and one of several that give sewage its pleasing smell. In general this

发表于:2019-01-26 / 阅读(128) / 评论(0)

英语听力文摘 English Digest

上海科学家研发防水耐火纸有助纸质文物保存

In January 2015, a fire in one of Russia's largest university libraries damaged more than 1 million historical documents, an incident which some media described as a cultural Chernobyl. 2015年1月，俄罗斯最大的大学图书馆之一发生了火灾

发表于:2019-02-02 / 阅读(133) / 评论(0)

英语新闻

流行美语第133课 - Dibs / Shotgun

今天Larry和李华要到朋友Bob家里，Bob因为要搬家，所以把他的立体音响卖给Larry。今天李华会学到两个常用语：dibs和shotgun. LL: I'm really glad that Bob gave me fi

发表于:2019-02-05 / 阅读(196) / 评论(0)

美国之音《流行美语》

万物简史第227期:把铅撵出去(16)

On its website, a history of the company makes no mention of leador indeed of Thomas Midgleybut simply refers to the original product as containing a certain combination of chemicals. 在它的网站上，公司的历史没有提及铅──也没有提

发表于:2019-02-17 / 阅读(142) / 评论(0)

万物简史

万物简史第225期:把铅撵出去(14)

By counting back through these layers and measuring the amount of lead in each, he could work out global lead concentrations at any time for hundreds, or even thousands, of years. The notion became the foundation of ice core studies, on which much mo

发表于:2019-02-17 / 阅读(156) / 评论(0)

万物简史

万物简史第213期:把铅撵出去(2)

Lead is a neurotoxin. Get too much of it and you can irreparably damage the brain and central nervous system. Among the many symptoms associated with overexposure are blindness, insomnia, kidney failure, hearing loss, cancer, palsies, and convulsions

发表于:2019-02-17 / 阅读(159) / 评论(0)

万物简史

TED演讲获奖青少年,科技在行动(1)

If you were going to a restaurant and wanted a healthier option, 如果你去饭店，你想吃得健康一点， which would you choose, grilled or fried chicken? 你会选择哪种食品呢，烤鸡还是炸鸡？ Now most people would answer grill

发表于:2019-02-21 / 阅读(175) / 评论(0)

TED演讲教育篇

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