单词：thecodontians
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How often do you donate blood? Once a year? Once every few years? Never? Would you be willing to do it every few weeks? That is what James Harrison of Australia has been doing for almost 60 years. In that time he has donated blood over 1,000 times. J
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In Vitro - experiments which are carried out in a laboratory as distinct from in vivo experiments In Vivo -experiments which are carried out in live animals as distinct from in vitro experiments Immun
医务英语
High tech gadgets such as cell phones are bringing profound change to developing nations, and not just economic progress. Text messaging, the Internet and other innovations are having wide ranging social repercussions, from exposing human rights abu
VOA标准英语2008年（七月）
U.S. President Barack Obama said North Korea's nuclear program poses a grave threat to the world. Mr. Obama and visiting South Korean President Lee Myung-bak told reporters that new responses must be found. S. Korean Pres. Lee Myung-bak and Pres.Bar
VOA标准英语2009年(六月)
OSAKA, Dec. 28 (Xinhua) -- Japan's antinuclear Tomorrow Party on Friday split into two groups only a month after its inception due to internal conflicts over personnel matters, local press reported. Yukiko Kada, governor of Shiga Prefecture and the f
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