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南非领先非洲大陆核能研发 South Africa is Africas only nuclear power, and the first nation to have voluntarily relinquished its nuclear weapons. The government then committed to being fully transparent about its nuclear activities, which i
VOA双语新闻 2014年3月
DIALOG 29 1--There's no reason on earth why we should stay here. 2--Yes, there is! Somebody's got to keep an eye on things. 3--That's what I think. Otherwise this whole project could go wrong. 1--I do
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By Zulima Palacio Washington, DC 05 May 2006 watch Hydro Power report For a long time, hydropower was considered the original renewable energy resource. In many countries, hydropower represents a high
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Bladeless Wind Generator Safe for Birds Wind turbines are tall structures with large blades used to produce electricity. They are useful sources of low-cost, renewable energy. But they can also be deadly to birds and bats. The turbines large blades t
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South Africa Leads Continent in Nuclear Development 南非领先非洲大陆核能研发 JOHANNESBURG South Africa is Africas only nuclear power, and the first nation to have voluntarily relinquished its nuclear weapons. The government then committed
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All the time they are at work, the beavers are constantly moving to and fro, trampling down the soft clay with their paws, 工作时间，海狸总会走来走去，用爪子踩实软粘土， and making all as smooth as they can. And it is a curious
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