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She was yanking inexpertly ata large knot when the dreadful thing happened. Off came the hair, all of it,dangling in a tousled clump from the teeth of the comb. Above Agnes's smooth broad brow there was nothing; no head, no bald skull. Just an awful
发表于:2019-01-01 / 阅读(32) / 评论(0)
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iPhone Becomes Low Cost Microscope The Apple iPhone can be used for lot of things making calls, playing games and sending pictures, video and text. Scientists say it also can be converted into a low-cost microscope to detect worm-related infections i
发表于:2019-01-14 / 阅读(64) / 评论(0)
VOA标准英语2013年(三月)
By Jessica Berman Washington 12 October 2006 Researchers have developed a new tuberculosis test that makes a diagnosis possible in a fraction of the time it can take using other methods. Experts say the test would be especially useful in the develop
发表于:2019-01-31 / 阅读(99) / 评论(0)
2006年VOA标准英语(十月)