单词：episulfide
单词：episulfide 相关文章
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英文魔法师字源大挪移
GWEN IFILL: Drugmaker Mylan has been under heavy fire for its soaring price hikes for EpiPens, the lifesaving necessity for those with serious allergic reactions. Its price has skyrocketed to as much as $600 for a set of two. At first, Mylan offered
PBS访谈健康系列
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
cnn2009年(十一)月
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
60秒科学
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
2016年VOA慢速英语(十二)月
By Amra Alirejsovic Los Angeles, California 26 April 2007 Harun Mehmedinovic is a young Bosnian-American filmmaker who is studying at the American Film Institute (A.F.I.) in California, one of the most prestigious film schools in the world. His late
2007年VOA标准英语（四月）
Discounts Aren't Enough to Halt Outrage At High EpiPen Prices KELLY MCEVERS, HOST: If you have a severe allergy to nuts or bee stings, you probably know what an EpiPen is. It's a plastic tube and needle that gives a dose of epinephrine when you press
2016年NPR美国国家公共电台8月
AUDIE CORNISH, HOST: Stanley Tucci, Rachael Ray and Patti LaBelle - what do these people have in common? They're among the 100 greatest home cooks of all time according to Epicurious. The idea for the list came from editor David Tamarkin. And while s
2017年NPR美国国家公共电台6月
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
英语听力文摘 English Digest
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
英语听力文摘 English Digest
By David McAlary Washington 15 June 2006 Australian and British researchers say the number of fractured hips is expected to nearly quadruple worldwide by mid-century as the population ages. This means an increasing burden on health care systems unle
2006年VOA标准英语（六月）
By Nico Colombant Dakar 14 February 2008 Aid workers in the Democratic Republic of Congo are expressing concern that a cholera epidemic in the southeastern mining region is getting worse, despite attention to the problem. About 100 people have died s
VOA常速英语2008年（二月）
Aid agencies are warning of the threat of disease in India's Bihar State, which has been hit by devastating floods. Anjana Pasricha reports from New Delhi the floods have displaced an estimated three million people and killed at least 90 people. Vil
VOA标准英语2008年（九月）