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Bacterium Targets Untreated HIV-Positive People Researchers are warning of an emerging form of intestinal disease in sub-Saharan Africa. Its targeting mostly HIV-infected people, who are not on treatment. The disease kills up to 45 percent of those i
VOA标准英语2012年(九月)
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This'll just take a minute. If you want to shell a walnut, it helps to have a nutcracker. And if you want to digest seaweed, it helps to have the right enzymes. Now, a study in the jo
Scientific American(四)月
Photo of my wife 我老婆的照片 A businessman enters a tavern, sits down at the bar, and orders a double martini on the rocks. After he finishes the drink, he peeks inside his shirt pocket, and then orders the bartender to prepare another double
趣味英语
I love to use my laptop, to play around with different programs, to surf the web, and to edit photos. Today I have been doing that for hours. Now that my app has come out in iTunes, I have been trying to design a really good photo for it. The existin
英语博客 A cup of English
今天我们要学的词是photo op. Photo op是photo opportunity的简称，意思是为做宣传而专门安排的媒体拍照机会。The meeting between the two Presidents was followed by a photo op, 两位总统会面后接受媒体拍照。 一架
英语每日一词
今天我们要学的词是photo op. Photo op是photo opportunity的简称，意思是为做宣传而专门安排的媒体拍照机会。The meeting between the two Presidents was followed by a photo op, 两位总统会面后接受媒体拍照。 一架
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