单词：metriaeschra apatela elegans
幻心舟蛾
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Worms seem like strange animals to send to the International Space Station. It's not like astronauts are going to take time off to go fishing and need to bait their hooks. So why send worms? Believe it or not, scientists are using a microscopic worm,
发表于:2018-12-07 / 阅读(200) / 评论(0)
大千世界
大千世界
SCIENCE IN THE NEWS - October 22, 2002: Nobel Science Prizes By George Grow VOICE ONE: This is Steve Ember. VOICE TWO: And this is Bob Doughty with SCIENCE IN THE NEWS, a VOA Special English program a
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科技之光
科技之光
SCIENCE IN THE NEWS - October 15, 2002 : Gene Map of Malaria / Concerns About Genetic Engineering / AIDS Warning for Five Countries VOICE ONE: This is Bob Doughty. VOICE TWO: And this is Steve Ember w
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科技之光