单词：Impatiens dicentra
单词：Impatiens dicentra 相关文章
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
Scientific American(十一)月
By Margaret Besheer Irbil, Iraq 29 November 2006 The government of Iraq's embattled prime minister suffered another blow Wednesday when legislators and cabinet members loyal to an anti-American Shi'ite cleric suspended their participation to protest
2006年VOA标准英语（十一月)
Students Play the Money Game In todays uncertain economic times, understanding money matters is more important than ever. But Americas education system is not doing a good job of teaching financial literacy. Past surveys show high school seniors answ
VOA标准英语2011年(十月)
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
60秒科学
By Lisa Schlein Geneva 12 December 2006 Paralyzed woman crawls out of a tent at a shelter for internally displaced people in Baghdad's Shi'ite neighborhood Kazimiyah, 6 Oct 2006 The International Organization for Migration reports thousands of peopl
2006年VOA标准英语（十二月）
By Jim Randle Washington, D.C. 02 January 2007 watch Iraq Oil report Iraq's Kurds, Sunnis, and Shi'ites are bickering over how to distribute the nation's potentially vast oil revenue. In the meantime, energy officials are trying to rebuild the batte
2007年VOA标准英语（一月）