单词：dimethyl sulfide and metha-nethiomethane
单词：dimethyl sulfide and metha-nethiomethane 相关文章
Scientists in Mexico say they may have found a way to cut production of methane, a gas linked to rising temperatures on the Earths surface. The scientists say their method may help reduce the methane released by cows, one of the main producers of the
2017年VOA慢速英语(二)月
VOICE ONE: I'm Steve Ember. VOICE TWO: Colorful fish at Danger Reef And I'm Barbara Klein with EXPLORATIONS in VOA Special English. Today we explore the clear blue waters around the islands of the Bahamas to learn about the exciting sport of scuba d
VOA慢速英语2008年（八）月
This is the VOA Special English Agriculture Report. Thanksgiving Day is America's version of a harvest festival. The holiday is celebrated on the fourth Thursday in November. This Thursday, millions of Americans will join family and friends to give t
2010年VOA慢速英语(十一)月
'Belle' Of The Big Screen: Gugu Mbatha-Raw Stays Busy In Film play pause stop mute unmute max volume 00:0007:30repeat repeat off Update Required To play the media you will need to either update your browser to a recent version or update your Flash pl
2016年NPR美国国家公共电台11月
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
DEVELOPMENT REPORT - Nobel Peace Prize Winner Wangari Maathai By Gary Garriott Broadcast: Monday, October 18, 2004 This is Gwen Outen with the VOA Special English Development Report. Graphic Image Ken
农业与发展
By Kane Farabaugh Cincinnati, Ohio 26 October 2006 watch report Ohio Battleground The midwestern state of Ohio was a key battleground state in the 2004 election. President George Bush ultimately won the state, a victory that assured his second term
2006年VOA标准英语（十月）
VOICE ONE: I'm Faith Lapidus. VOICE TWO: And I'm Bob Doughty with EXPLORATIONS in VOA Special English. Today we tell about female scientists around the world and some of the problems they face. (MUSIC) VOICE ONE: Women have been making scientific di
VOA慢速英语2009年（五）月
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
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By Delia Robertson Johannesburg 01 November 2006 Former South African president, P.W. Botha, has died at his home in Wilderness on the country's southern coast. He was 90. VOA's Delia Robertson has this profile on the man who introduced some reforms
2006年VOA标准英语（十一月)
Middle class red shirt supporters Uraiwan Suwannasang, left, and Teerapan Suwannasang, in front of photos of their children at home in Ban Pheu, 17 May 2010 Many of the so-called Red-Shirt protesters who have spent more than two months demonstrating
VOA标准英语2010年(五)月
On the day South Korea formally bid farewell to its former president, the country's current president held a groundbreaking meeting with a team of high-level North Korean envoys visiting to pay respects. A vehicle putting up a portrait of late forme
VOA标准英语2009年(八月)
A: What can I do for you today? B: Doctor, I have the worst toothache! A: How long have you had this pain? B: For about a week or so, but its gotten really bad in the last couple of days. A: Did you do anything that might have aggravated your tooth?
英语情景对话-健康
A: So what brings you to my office today? B: My tooth is killing me! A: How long has your tooth been bothering you? B: It just started hurting me last night. A: Have you injured your tooth in any way? B: I think one of my fillings might be coming loo
英语情景对话-健康
A: How have you been doing? B: I cant sleep or eat. I have a really bad pain in my tooth! A: How long have you had this toothache? B: It bothers me off and on, but its gotten much worse these past few weeks. A: Is there anything that youve done to yo
英语情景对话-健康
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
What babies know fascinates doctors, researchers and parents. With technology that can measure brain waves and other indicators, what researchers are finding is that babies know more than we suspect. What do they know and when do they know it? Such q
VOA标准英语2010年(五)月