[电] 阴极稳压摄像管

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Batteries of the future need to deliver more energy, and they need to be smaller. Researchers at MIT think they have developed a technology that can, a

发表于:2019-01-08 / 阅读(82) / 评论(0) 分类 Scientific American(四)月

New research suggests ayahuasca, a jungle vine found in the Peruvian rainforest, can have a powerful effect on the human central nervous system when brewed with other plants. Researchers say one of ayahuasca's most promising uses could be in treating

发表于:2019-01-13 / 阅读(61) / 评论(0) 分类 VOA标准英语2010年(三月)

BEIJING, Oct. 10 (Xinhuanet) -- Actress Zsa Zsa Gabor was rushed again to the hospital in Los Angeles to reattach a feeding tube to her stomach Sunday, her publicist said. The 94-year-old actress was taken from her home to UCLA Ronald Reagan Medical

发表于:2019-01-17 / 阅读(57) / 评论(0) 分类 英语新闻

By Robert Berger Jerusalem 13 January 2006 Ariel Sharon Israeli Prime Minister Ariel Sharon remains in critical but stable condition at a Jerusalem hospital. Over a week after Mr. Sharon's massive str

发表于:2019-02-03 / 阅读(123) / 评论(0) 分类 2006年VOA标准英语(一月)

Oh, to be free like a bird. It's been the stuff of fantacy, and of reality. Sort of .A self-contained flying man. This jet pack from 1960s had barely enough fuel to fly 30 seconds. So the dream languished for decades. Everyone agreed it was completel

发表于:2019-02-07 / 阅读(129) / 评论(0) 分类 英语美文

The central parity rate of the Chinese currency strengthened 175 basis points on Tuesday, closing at 6.32 to the U.S. dollar. The yuan has stabilized somewhat after a sharp depreciation in August, but remains down 1.8 percent compared to the start of

发表于:2019-02-18 / 阅读(55) / 评论(0) 分类 英语新闻
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120
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Adolphe Sax
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