标签：bacteria 相关文章
A: Why are you handing me a plastic cup? B: Your doctor wants to test your urine and needs a sample. A: How am I supposed to do that? B: We need you to urinate like you normally would, and then stop and finish into the cup. A: What am I supposed to d
英语情景对话-健康
Everywhere you go, the trillions of microbes in your gut go, too. And that's a comforting thought, because according to a new study, a more diverse population of intestinal bacterias is linked to better health. The work is in the journal Nature. Dani
Scientific American(八)月
everywhere you go ,the trillions of microbes in your gut go,too.and that's a comforting thought,because according to a new study,a more diverse population of intestinal bacteria is linked to better health. the work is in the journal Nature.Danish res
Scientific American(八)月
In labs, bacteria may swim freely, but out in the world, including our bodies, bacteria often exists packed together, dense communities called biofilms, and these configurations can help them cause illness. Finding clues about how such bacteria group
Scientific American(八)月
As a kindergarten teacher might say, sharing is caring. She might not mention that cooperation is also a great way to form a community and thus improve everyone's chances of survival. Humans aren't only ones to apply this strategy. Marine bacteria al
Scientific American(九)月
Baby's Bacteria Related to Birth Method 出生方式决定婴儿携带什么样的细菌 Each of us harbors a unique collection of bacteria, on our outsides and our insides. Now, scientists are finding that the bacteria you get at birth may depend on
初学者听力文摘精选
Back when most folks relied on an icebox to cool food, a block of ice was a precious commodity. If you put hot food in the icebox, the ice might melt. 以前，当大多数人们需要倚赖冰盒来冷却食物的时候，一块冰块就是一件珍贵
初学者听力文摘精选
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
SCIENCE IN THE NEWS – July 16, 2002: Foods That Protect Against Disease VOICE ONE: This is Sarah Long. VOICE TWO: And this is Bob Doughty with Science in the News, a VOA Special English program abou
科技之光
Some bacteria have adapted to super cold environments for millions of years. And scientists have isolated some of the essential genes that allow bacteria to tolerate their harsh living conditionsbecause these same genes might help in the creation of
英语杂谈
AGRICULTURE REPORT –August 20, 2002: Exploding Meat By George Grow This is the VOA Special English AGRICULTURE REPORT. American scientist Morse Solomon has developed an unusual method to make meat s
农业与发展
This Thanksgiving, as you savor your turkey and stuffing, here's something else to give thanks for: the army of microbes that help you digest the feast. Because when you eat, you're feeding them tooand triggering an enormous bloom of gut bacteria. In
2017年Scientific American(三)月
> 25 美国官方提出要预防来自动物的传染疾病 DATE=5-22-01 TITLE=AGRICULTURE REPORT - Preventing Infections from Animals BYLINE=George Grow （Start at 59
自然探索
DEVELOPMENT REPORT – Cloth Filters Fight Cholera By Jill Moss Broadcast: Monday, February 14, 2005 I'm Gwen Outen with the VOA Special English Development Report. A few years ago, researchers discov
农业与发展
1.President Barack Obama toured Germanys Buchenwald concentration camp Friday. He said the camp where an estimated 56,000 people died is the ultimate rebuke to Holocaust deniers and skeptics. 2.France and Brazil are disagreeing over what has or has
美联社新闻一分钟2009年(六)月
One kiwi fruit grower in the Bay of Plenty has discovered a disease in his orchard which has frightened all kiwi fruit growers in the area. Tests have shown that the disease is PSA although they dont yet know which type of PSA it is. This disease is
新西兰英语
It's two in the morning, and like most people you're fast asleep. But then your eyes pop open and your three year old is standing there, tugging her ear and saying, Mommy, my ear hurts. If you're a parent with a young child, this scenario is probably
英语时差8，16
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
Since that time, scientists have found that numerous species of fungi produce chemicals to destroy bacteria and that bacteria even produce chemicals that destroy other bacteria. Antibiotics are relatively new in modern medicine, but the earliest medi
英语时差8，16
On the way home from the grocery, you get delayed so much that the frozen meat youve bought thaws out. The question is should you refreeze it?Weve been told by reliable authorities that its not good to refreeze uncooked meat. Why not? If freezing the
英语时差8，16