单词：animal production
单词：animal production 相关文章
Speaking Sparkles (2) 妙语连珠 1. Well, let's say, you know, life is a constant learning process and I encourage everybody who is watching or 1) participating to constantly think about lifetime le
疯狂英语2003年
When humans have a heart attack, heart muscles die after being cut off from their blood supply. But what if the heart could grow new muscle to replace the dead tissue? Some amphibians can regrow body parts, even entire limbs. But humans and other hig
VOA标准英语2011年(三月)
Researchers have identified a link between dementia and the brain damage that can occur in older people with high blood pressure and other forms of cardiovascular disease. High blood pressure, high cholesterol, and other conditions that affect blood
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创业者需要记住的15句话 又到一年毕业季，面对现在高校毕业生惨淡的就业形势，一些毕业生选择了自主创业，为自己打工。下面是15句对创业者的忠告，你可以说给你打算创业的同学听听。
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Beating Heart Tissue from Stem Cells In a study in the journal Science, researchers explain how they used mouse embryonic stem cells and microchip technology to create heart muscle tissue that actually beats. Cynthia Graber reports One of the goals o
60秒科学
1. Be slow to hire and quick to fire. 招人要慎重，炒人要迅速。 2. Create the best environment you can for your team. 为你的团队创造最好的工作环境。 3. Companies aren't just about profits. 开公司不仅仅是为了钱。 4
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