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2013托福考试备考：托福阅读必备背景资料（十三）

Controversial researcher Peter Duesberg has been cleared of wrongdoing following formal complaints made after he and others published a paper arguing that there is "as yet no proof that HIV causes AIDS." Duesberg, who is well known for denying the...

2013托福考试备考：托福阅读必备背景资料（十三）的相关文章

热2013托福考试备考：托福阅读必备背景资料（十二）

The loss of genes that guide the development of fins may help to explain how fish evolved into four-limbed vertebrates, according to a study. In the late Devonian period, around 365 million years ag...

热2013托福考试备考：托福阅读必备背景资料（十一）

近几天来，南非世界杯各大球场内气氛紧张，各国球队正为争取16强席位而奋力厮杀，而此时此刻我们这些远在遥远东方的球迷们除了看看比赛还能看看什么呢?趁着今天比赛还没开始，我们一起来看看关于世界杯比赛的趣闻吧。 The FIFA World Cup is an international association football competition contested by the men's ...

热2013托福考试备考：托福阅读必备背景资料（十）

Biomedical engineers have built many types of human organs in the lab, but they've lagged on lung tissue--until now. Two new studies have used very different approaches to do the job. One team has ...

热2013托福考试备考：托福阅读必备背景资料（九）

Dramatic event that will determine the course of the 21st century will take place in 2014, according to a Cambridge University academic. In 1517 Martin Luther nailed his theses to the door of Witten...

热2013托福考试备考：托福阅读必备背景资料（八）

The campaign to conserve electricity in the home needs to pay more attention to consumers and not just fix on the gee-whiz technology of smart meters, a leading energy conservation advocacy organiza...

热2013托福考试备考：托福阅读必备背景资料（七）

Over half of the world is covered with water, we need it to stay alive. When there's too much water, or water in the wrong place, it's a problem we call flooding. In the UK people are sometimes for...

热2013托福考试备考：托福阅读必备背景资料（六）

We all carry our DNA around with us—in every cell of our bodies—but some biotech trailblazers are toting their genomes with them, too. In a recent talk Jay Flatley, president and CEO of sequencing g...

热2013托福考试备考：托福阅读必备背景资料（五）

The stink of exhaust, the mind-numbing tedium of traffic, parking lots blighting central city real estate. The urban sins of the automobile are numerous indeed. As more people move to cities and ga...

热2013托福考试备考：托福阅读必备背景资料（四）

Fights between couples are personal. So it makes sense that the passionate ones are rarely about the actual content but rather are typically about something else entirely. But what is the “somethin...

热2013托福考试备考：托福阅读必备背景资料（三）

世界杯已经走过了长长80年的历史了。世界杯创造了许多有趣搞笑的记录，我们一共选出了10个世界杯历史中最搞笑的时刻。 The World Cup has the power to conjure up so many different emotions in people. Should you be asked to list them off, humour would probably ...

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