单词:bacterial flora alternation
单词:bacterial flora alternation 相关文章
Common Infection Raises Female to Male HIV Risk A common bacterial infection among women in sub-Saharan Africa sharply increases the risk of HIV transmission to men. Researchers say current treatments provide only a short-term solution. Its long been
[00:08.72]Hank Stram lives in San Francisco with his wife and daughter. [00:14.97]On October 17th,1989 a strong earthquake took place and killed over 100 people. [00:23.61]Hank was caught in the earthquake. [00:27.45]1 Listen to part 1. [00:32.10]The
[00:06.09]LISTENING [00:08.72]Hank Stram lives in San Francisco with his wife and daughter. [00:14.89]On October 17th,1989 a strong earthquake took place and killed over 100 people. [00:24.45]Hank was caught in the earthquake. [00:28.21]1 Listen to p
STEVE INSKEEP, HOST: Some new parents have started giving their newborns what's being called a bacterial baptism. The idea is to try to help their babies develop healthy microbiomes, the collection of friendly bacteria that inhabit everyone's bodies.
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 how you got here. Because babies born vaginally have a different set of microbes than th
This is Scientific Americans 60-second Science. I'm Adam Hinterthuer. Got a minute? The Komodo dragon is the largest living lizard and a fearsome predator. It has long been thought that some of its hunting prowess was due to a mouth teeming with bact
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
The Road to Happiness 幸福之道 If you look around at the men and women whom you can call happy, 只要你观察一下周围那些你可称之为幸福的男男女女, you will see that they all have certain things in common. 就会看出他们都
John Keats (1795 - 1821) My heart aches, and a drowsy numbness pains My sense, as though of hemlock I had drunk, Or emptied some dull opiate to the drains One minute past, and Lethe-wards had sunk: Tis not through envy of thy happy lot, But being to
坚持不懈,直到成功。 我们每天的奋斗就像对参天大树的一次砍击,头几刀可能了无痕迹。每一击看似微不足道,然而,累积起来,巨树终会倒下。这恰
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Theres definitely methane on Marsand there are seasonal variations of how much is being released into the thin Martian atmosphere. Which means that Mar
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Mosquitoes carry nasty diseasesdengue fever, west nile, malaria. But the microbes that cause those diseases dont attach themselves to the mosquitoes an
Poachers have killed one of the worlds largest elephants a famed great tusker named Satao in Tsavo East National Park in Kenya. 在肯尼亚东察沃国家公园,偷猎者杀死一头世界上最大的大象有名的长牙大象萨韬(Satao)。
用词错误 1) Students must know how to operate a computer. / Students must know how to work on a computer. 2) People can be exposed to many new things on the Internet. / People can learn many new things on the Internet. 3) The purpose of this lett
One elderly couple's car somehow ended up on its side in Bel Air, and they made the best of the situation by snapping photos. 一对老夫妇的汽车在了贝莱尔的路边抛锚,他们充分利用这一情况抓拍了照片。 Benjamin and Eliza
New Zealand's five dollar note has been named the banknote of 2015 by the International Bank Note Society -- a clear winner among nearly 40 eligible designs from a record 20 countries. 新西兰5元纸币近日被国际纸币学会评为2015年度最佳
MEXICO CITY, May 18 (Xinhua) -- The Mexican government signed an agreement with the non-governmental group TRAFFIC on Tuesday to exchange information about illegal seizures of flora and fauna species in Mexico. The agreement with the wildlife trade m
Wegener developed the theory that the world's continents had once come together in a single landmass he called Pangaea, where flora and fauna had been able to mingle, before the continents had split apart and floated off to their present positions. A