标签：bacterium 相关文章
This is the VOA Special English Agriculture Report. 这里是美国之音慢速英语农业报道。 White rice is the world's most popular form of rice. But it goes through a milling process that removes many nutrients. As a result, people who eat a
2011年VOA慢速英语(三)月
研究人员考虑气候变化对公共卫生影响 Climate change is not just a change in the global temperature; it is also a change in the weather. Scientists say we can expect more extrems weather events along with some areas see more rains and f
VOA标准英语2016年(二月)
Did you know that there could be more bacteria living in your mouth than there are people on earth? 你知道吗，寄居于你口中的细菌有可能比全世界的人口数还多？ Bacteria love our mouths because the livin is easytheres plenty o
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Bacteria are extremely small living things. While we measure our own sizes in inches or centimeters, bacterial size is measured in microns. One micron is a thousandth of a millimeter: a pinhead is about a millimeter across. Rod-shaped bacteria are us
考研背诵50篇
Bad Things Come in Small Packages 拆信小心！ While most armies in the world shun their use, and military authorities exclude them from warfare, the technology to produce biological and chemical weapons is widely available. Moreover, these weapon
双语有声阅读
Traditional Sushi Eaters Have Specialized Gut Bacteria If you want to shell a walnut, it helps to have a nutcracker. And if you want to digest seaweed, it helps to have the right enzymes. Now, a study in the journal Nature shows that Japanese peopleb
60秒科学
HEALTH REPORT -May 29, 2002: Staph Vaccine By Nancy Steinbach This is the VOA Special English Health Report. American researchers say they have developed the first vaccine medicine that can prevent a
健康与环境
Abductors - muscle taking a limb or the jaw away from the body. Acetyl choline - Aneurotransmitter substance found at all cholinergic synapses including those of motoneurones at the neuromuscular junc
医务英语
1. Israel said it has called up another 16,000 reservists, allowing it potentially to widen its Gaza offensive against the territory Hamas rulers in 3 weeks old war. The move coincides with stalled diplomatic efforts to end the war which has claimed
美联社新闻一分钟2014(八)月
This is the VOA Special English Development Report. Buruli ulcer is a bacterial disease that eats away muscle tissue. People can become disabled. They may even need to have an arm or leg removed. Buruli ulcer disease can be easily treated with antib
VOA慢速英语2009年（四）月
Health Report - Designing an Alternative to Antibiotics This is the VOA Special English Health Report. In nineteen twenty-eight a British scientist made a chance observation. He noticed that some mold had grown in bacteria in a culture plate in his l
2012年VOA慢速英语(八)月
Nano Tool Watches Teardrop Protein Destroy Bacteria About a hundred years ago, a Scottish biologist discovered that proteins called lysozymes in human tears can kill bacteria. Scientists have studied the enzyme extensively, but molecular biologist Gr
VOA标准英语2012年(一月)
Research Group Has High Hopes for New TB Vaccine Physicians have long known that the so-called BCG vaccine for tuberculosis does not provide the same level of protection against the disease in all parts of the world. Some also say the vaccine's effec
VOA标准英语2011年(九月)
Microbe Could Help Battle Malaria Researchers have discovered a bacterium in the gut of the Anopheles mosquito which may someday be used to destroy and, therefore, prevent the spread of the disease-causing parasite. The World Health Organization esti
VOA标准英语2011年(五月)
New Treatment Potential Found in Popular TB Drug Scientists say new insights into a common tuberculosis drug will make it possible to shorten the treatment period for patients infected with TB. The drug pyrazinamide is widely used in combination with
VOA标准英语2011年(八月)
Gates Foundation Continues to Fight Tuberculosis WASHINGTON By Abigail Martin Tuberculosis, or TB, is spread when an infected person coughs or sneezes, dispersing the germmycobacterium TBinto the air. The World Health Organization says there were an
VOA标准英语2013年(七月)
Scientists Race to Contain Malaria: New Discoveries, More Resistance Artemisinin has helped cut global malaria deaths by more than 25 percent over the past decade. But now, in parts of Southeast Asia, this drug no longer works. And the World Health O
VOA标准英语2013年(五月)
GUY RAZ, HOST: It's the TED Radio Hour from NPR. I'm Guy Raz. So remember your high school science class? Maybe you had a textbook that sounded something like this. TYLER DEWITT: Remember that a water molecule is polar, with a partial negative charge
2017年NPR美国国家公共电台8月
By Jessica Berman Washington 01 November 2007 A coalition of international public health officials says drug-resistant tuberculosis is a man-made epidemic caused by a lack of global response to TB. The officials say more resources are needed to fight
VOA常速英语2007年（十一月）
Europe has been in the grip of an outbreak of E.coli, which has so far infected 2,400 people and killed 24. Most cases have been caused by contaminated food produce, although E.coli can spread from person to person. Daniel Bahr, the German health min
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