单词：extinct nature radionuclide
单词：extinct nature radionuclide 相关文章
L: do you believe in UFO's? B: sure. A UFO is just a space vehicle from another planet. If you think about it, our space shuttles are UFOs. L: I've never thought about it like that before. B: I've seen photos of UFOs in America before, but they've al
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[00:00.00]1.M:It looks like it'll take us about six hours to drive from here to Chicago. [00:06.22]W:It would be more relaxing to take the train.But I guess we should watch our expenses. [00:13.98]Q:What does the woman imply? [00:17.21]2.M:This heat
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By David McAlary Scientists have discovered fossils of an ancient, tiny species of human in an isolated part of Indonesia. They are bones from what they say is a smaller version of the now extinct imm
VOA2004（下）--健康科技
By George Dwyer Washington 30 May 2007 Ivory-billed woodpecker A North American bird believed to have become extinct in 1944 has apparently re-appeared. The Ivory Billed Woodpecker was rediscovered in February 2004 when it was reportedly spotted twic
2007年VOA标准英语（五月）
By Phil Mercer Sydney 21 May 2008 Australian and U.S. scientists have successfully inserted a gene from the extinct Tasmanian tiger into a mouse embryo. They say the result has been bone and cartilage from the extinct marsupial developing inside the
VOA标准英语2008年（五月）