标签：bacterium 相关文章
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 abo
新东方背诵文选
A: What am I supposed to do with this plastic cup? B: That cup is for a urine sample. A: How, exactly, does this work? B: This particular test calls for you to urinate into the cup after you have urinated a little into the toilet. A: When I finish, w
英语情景对话-健康
antibiotic 抗生素 artery 动脉；干线，中枢 bacterium 细菌（bacteria） bruise 青肿；植物碰伤；削弱，损害；捣碎 capsule 简略的，小而结实的；摘要，胶囊，太空舱；压榨，节略，以瓶帽密封 chronic 长期的，慢性的，一贯的 chinical 临床的；冷静的，慎重的，极度
80天攻克雅思核心词汇
Evidence mounts that ancient Nubian brewers purposely made beer so that it contained a dose of antibiotic tetracycline. Christopher Intagliata reports 有证据表明努比亚的啤酒制造者故意在啤酒中加入抗菌四环素。 In 1980, a sci
60秒科学
This 2000 seat soccer stadium is powered entirely by green energy. Forest Green Rovers chairman Dale Vince took over the club eight years ago with the goal of implementing sustainable solutions. 这个容量达2000个座位的足球场完全由绿色能
VOA标准英语2018年(八月)
New Dysentery Threat Emerges Its known that clean water and sanitation can bring a sharp decline in dysentery cases in developing countries. But its not enough to stop the spread of the disease in countries undergoing rapid development and industrial
VOA标准英语2012年(八月)
BOB DOUGHTY: This is SCIENCE IN THE NEWS, a program in VOA Special English. Im Bob Doughty. SHIRLEY GRIFFITH: And Im Shirley Griffith. Today we tell about the development of what scientists are calling a synthetic cell a cell produced by people inste
2010年VOA慢速英语(七)月
Is Secondhand Smoke Child Abuse? 儿童吸二手烟是虐待儿童行为吗? From VOA Learning English, this is the Health Lifestyle report. Doctors have been warning for years that secondhand smoke leads to many types of illness. However, many child
2015年VOA慢速英语(四)月
Deaths from tuberculosis are increasing in the developing world and especially in Africa. It's the world's second deadliest infectious disease after HIV/AIDS. In 2008, nearly two million people died of TB and researchers warn that mortality rates wil
VOA标准英语2010年(十一)月
The drug Taxol is a powerful weapon in the fight against cancer, but it's very expensive and complicated to manufacture. Now, scientists at Tufts University and the Massachusetts Institute of Technology (MIT) say they've taken the first steps to make
VOA标准英语2010年(十)月
189 injured in Shanghai subway crash discharged from hospital Some 190 people injured in the subway train collision in Shanghai have been discharged from hospital, while another 95 are still receiving medical treatment. Doctors say most of the injuri
Hourly News 每小时新闻
Bacterially Boosted Mosquitoes Could Vex Viruses蚊子也能抑制病毒传播？ It may sound strange, but scientists are celebrating the survival and spread of tens of thousands of mosquitoes they released in Northeastern Australia. The whole thing
2017年Scientific American(六)月
Alternative Energy? Bugs And Biofuel One day, probably sooner than we like to think, oil production will peak. Then, gasoline prices will go not merely through the roof but up and away into unimagined heights. Before that happens, though, we could ha
英语时差8，16
AGRICULTURE REPORT December 17, 2002 — Irradiated Meat This is the VOA Special English Agriculture Report. The United States government has approved methods of destroying bacteria in meat by using r
农业与发展
AGRICULTURE REPORT - Study Says Genetically Engineered Rice Cuts Use of Insecticides By Mario Ritter Broadcast: Tuesday, May 10, 2005 I'm Gwen Outen with the VOA Special English Agriculture Report. A
农业与发展
baby n. 婴儿,孩子 解析：注意baby 的代词通常用it babysitter n.保姆 bachelor n. 单身汉;[亦作B－]学士(学位) 解析：联系记忆：Bachelor of Arts 文学学士 Bachelor of Sc
英文语法词汇
Fecal Transplanters Fish Out Key Ingredient These days, antibiotics are no silver bullet. In fact, if you get them in the hospital, you may end up with an additional infection. Like the bug Clostridium difficile, or C. diffwhich infects more than 300
2018年科学美国人2月
Critics question safety of the pest-resistant strain Steve Baragona | Washington, DC 05 February 2010 An Indian seed company has developed an eggplant that it says will dramatically reduce the need for pesticides. Related Links Mahyco Navdanya Indian
VOA标准英语2010年(二月)
In 1928, Alexander Fleming was studying the bacterium, Staphylococcus, when some of the bacteria became contaminated with Penicillium fungus and stopped growing. Fleming decided that some chemical produced by the Penicillium fungus must be stopping t
英语时差8，16
文本： E: How can I have an ulcer? I thought I just pulled a muscle. C:They're caused by stress, hon. All right, and let's face it. You leaving home, your ma moving. Well, you've had your fair share. E: What am I supposed to do now? When can I swi
跟着美剧练发音