单词:calibrating pipette
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Campaign Aims to Help End Childhood HIV Infections A new campaigns been launched to help eliminate new HIV infections among children by 2015. Its called Believe it, Do it. Its estimated nearly 400,000 children become infected with the AIDS virus ever
ROBERT SIEGEL, HOST: Time, according to a couple of studies, is the most commonly used noun in the English language. I learned that from reading Alan Burdick's new book, Why Time Flies, a study of time that he calls a mostly scientific investigation.
A political debate is unfolding in Washington over the proper U.S. response to the situation in Iran where election protests have at times resulted in bloodshed. Some members of Congress are urging President Barack Obama to take a tougher approach, w
Now as we pull away from this world -- we're going to keep pulling away from the star now. 现在,我们将视线从这个世界里移出来--我们从这个星球移出来了 One of the things that always frustrated me a little bit about astronomy
On the one hand, there's the wanting processes. 在一方面,有一个期望过程 This is a bit like ambition and drive, 有点像野心和驱动力-- I'm going to do that. I'm going to work hard. 我要去做那件事,我要努力 On the other
Stark: yeah. I can fly. Jarvis are you there? Jarvis: At your service, sir. Stark: Engage[ɪn'gedʒ] Heads up Display. Jarvis: Check. Stark: Import all Preferences[ˈprɛfərəns】属性分析 from home interface[ˈɪntɚˌfes]接口,交界面. J