单词：
单词： 相关文章
31.Keys to the 21st Century Young students wil be the main work force in the 21st Century.To be a qualified talent,they should acquire two important keys,which are English and the knowledge of computers respectively. In the new century,English will b
疯狂英语易背作文
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 Scott Bobb Luanda 24 July 2007 Angola's civil war ended five years ago but today the country and its people still struggle to overcome the devastation caused by the 27 years of conflict. At one point, 80 percent of the people lived off the informa
2007年VOA标准英语（七月）
By Peter Fedynsky Bishkek, Kyrgyzstan 24 September 2007 It is said that it takes money to make money. Last year, an economist from Bangladesh won the Nobel Peace Prize for an innovative program called micro-lending that enables poor people to borrow
2007年VOA标准英语（九月）
Microneedles 微针疗法 Female: From flu vaccin es to tetanus booster s , injections are a must in modern medicine. But do they always have to make you say Ouch? Male: Eh,no? F: No,indeed.If new microneedle technology is successful, we may soon hav
英语听力文摘 English Digest
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