单词：resistant to sulfide tarnishing
单词：resistant to sulfide tarnishing 相关文章
By Roger Wilkison Greece's two top track and field stars have pulled out of the Athens Olympics after apologizing to their embarrassed nation for a scandal that arose after they missed drug tests next
VOA2004（下）--雅典奥运
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
By Ruth Reader Washington, DC 13 February 2008 There is growing concern around the world over illnesses caused by new antibiotic-resistant bacteria, or so-called superbugs, and the decreasing effectiveness of antibiotics to treat infections. Earlier
VOA常速英语2008年（二月）
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
2016年VOA慢速英语(十二)月
By Gilbert da Costa Abuja 27 August 2006 Two Nigerian army soldiers stand guard in Ikang, near Calabar in the Niger Delta area of Nigeria, Monday, August 14, 2006 Leaders in the Delta region of Nigeria are denouncing a security crackdown ordered by
2006年VOA标准英语（八月）
Drug-Resistant Malaria Threatens Effort to Control Disease The biggest fear is the resistance will spread across Southeast Asia and then spill over into Africa, where the vast majority of the 700,000 deaths a year [from malaria] occur. Historically,
VOA标准英语2012年(四月)
MSF: Alarming Scope of Drug-Resistant TB A medical aid group says the spread of multi-drug-resistant tuberculosis is much greater than previously thought. Doctors Without Borders calls the situation alarming. MDR-TB is a form of tuberculosis that doe
VOA标准英语2012年(三月)
Drug-Resistant TB Threatens Europe The Olallo Project in Central London was set up to help homeless people from Central and Eastern Europe get back on their feet by helping them find a place to live and get a job. The charity has evolved, though, to
VOA标准英语2013年(三月)
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 Jessica Golloher Moscow 02 November 2009 Joseph Stalin's grandson has sued a prominent Russian newspaper for libel, claiming Novaya Gazeta is tarnishing the former Soviet leader's good name. The news comes on the heels of a United Nation's commit
VOA标准英语2009年(十一月)
59 美国科学家正试图培育抗叶锈病小麦 DATE=6-19-01 TITLE=AGRICULTURE REPORT - Developing Wheat Resistant to Leaf Rust BYLINE=George Grow (Start at 59
科技之光
By Cathy Majtenyi Addis Ababa, Ethiopia 24 October 2007 As Ethiopia ushers in a new millennium according to its unique calendar, many Ethiopians are concerned about the direction the country is taking. Opposition politicians claim they are denied fre
2007年VOA常速英语（十月）
Malaria patients being treated at the hospital in Pailin, Cambodia. This spot on the Thai-Cambodian border is home to a form of malaria that keeps rendering one powerful drug after another useless (file photo) Health experts were alarmed to find a st
VOA标准英语2010年(七)月
The Chinese government is accusing Japan of falsely saying Chinese warships targeted fire-control radars at their vessels in the East China Sea. Foreign Ministry Spokesperson Hua Chunying says moves like these are unhelpful. The Japanese side has bee
英闻天下
Hydrogen and Industries Hydrogen,the lightest and simplest of the elements, has several properties that make it valuable for many industries. It releases more heat per unit of weight than any other fuel.In rocket engines, tons of hydrogen and oxygen
双语有声阅读
The long-drawn virgin vales; the mild blue hill-sides; as over these there steals the hush, the hum; 这些人迹未到的漫长的溪谷；这些柔和青苍的山腰；一经过这些地方，不禁使人屏声弃息； you almost swear that play-w
白鲸记
The Chinese government is accusing Japan of intentionally tarnishing China's image. The accusation comes following reports that a Chinese vessel put a radar firing lock on a Japanese naval patrol in the East China Sea this week. Chinese foreign minis
英闻天下
The Cleaning Power of Soft Drinks! 饮料的神奇清洁能力 Lets begin with a cleaning tip: If you have some tarnished or corroded brass that you want to clean, an old brass candlestick for example, you can use Coca-Cola, or any other cola soft dr
英语听力文摘 English Digest