单词：extractable nuclear antigen
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[00:43.02]Extract 1 [00:45.94]Make questions using the prompts in your book. [01:49.62]Extract 2 [01:52.96]Listen to the questions and answer them for yourself using short answers. [02:00.61]Use the pause button. [03:56.06]Extract 3 Xiaoyan talks to
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[00:02.40]Extaract 1 Xiaoyan and David meet at work. [01:12.95]Extract 2 Give advice using the cues in your book. [02:40.66]Extract 3 Xiaoyan phones a guesthouse to make a reservation. [03:50.20]Extract 4 Answer the questions as if you are Paul. [04:
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By Jessica Berman Washington 23 October 2007 Researchers say that an extract made from broccoli sprouts may prevent skin cancer when applied directly to the skin. VOA's Jessica Berman reports scientists say broccoli contains a chemical that stimulate
2007年VOA常速英语（十月）
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
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'Cash Mob' Phenomenon Supports Local Business What do you get when you mix a store's need for more business with enthusiastic local consumers? A cash mob. Organized through social media, the phenomenon is based on the concept of a flash mob, where la
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Yvonne: Hello, Im Yvonne Archer and this is 6 minute English. And with me today is Callum Robertson. Hello Callum! Callum: Hello Yvonne. Yvonne: Now today's topic is about an extraordinary（特别的） document which has been keptsecret for more than t
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