单词：skin normal flora
单词：skin normal flora 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
no skin off my nose to save one's skin 我们已经讲过一些和身体各部份有关的习惯用语，如：头，背，眼睛，手臂等。我们也讲过和皮肤有关的俗语。今天我们再给
美国习惯用语
this is Scientific American's 60 seconds' Science, i am Karan Hawking. This will just take a minute. Secret feeling chilly? Well, they may be a solution. Because researcher has generated genetic engineering mice: the kent field the cord. They worked
Scientific American(三)月
Are you a normal person？ 你是正常人吗？ During a visit to the mental asylum, a visitor asked the director ..., What is the criterion that defines a patient to be institutionalized? Well... said the director, we fill up a bathtub, and we offe
趣味英语
在雅思听力语段中，考生们经常会遇到讲述动物或者植物的内容，尤其是在Section4的学术类讲座中，动、植物(Fauna Flora)介绍更是经久不衰的主题之一。 总结历年考题，考试大的专家把该场景分
雅思英语