单词：Impatiens infirma
n. 脆弱凤仙花
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We humans are known to help out members of our own families. When it comes to business we call it nepotism. Now plants have demonstrated the same predilection, in a study published in the American Journal of Botany. Previous research showed that plan
发表于:2018-12-24 / 阅读(177) / 评论(0)
Scientific American(十一)月
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By Deborah Tate Washington 13 January 2006 Supreme Court nominee Judge Samuel Alito Witnesses will resume testifying Friday at Senate hearings for Supreme Court nominee Samuel Alito. They began their
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2006年VOA标准英语（一月）
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Plants Share Light If Neighbor Is Related A study in the American Journal of Botany finds that plants can tell if they're next to a relative and will grow to allow the kin more access to light. Cynthia Graber reports. We humans are known to help out
发表于:2019-01-30 / 阅读(185) / 评论(0)
60秒科学
60秒科学