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
VOA标准英语2012年(六月)
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
Scientific American(六)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
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
英语小达人
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
四六级词汇与结构练习
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
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