单词：guided tissue regeneration
单词：guided tissue regeneration 相关文章
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)
Sorry,thereisnotexttemporarily,Pleasehelptingroomtolookforit! 如果您能找到更好的听力原文，请发贴到 听力原文收集区 ，您将会获得10到30积分的奖励! Thankyou ！
美国加州科学教材California Science GK
Sports stars and politicians are in London to tour the Olympic Park construction site, where in exactly two years athletes from around the world will compete in the 2012 Games. Despite cost concerns, British authorities say they are ahead of schedule
VOA标准英语2010年(七)月
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
在备考雅思听力考试时，除了要多做练习之外，分析、总结并吸收之前的错题至关重要，但这个步骤却经常为大家所忽视。在做完了雅思听力考试练习后，总结失分点，才能确保下次不会犯同
雅思英语
ROME, June 6 (Xinhua) -- Newly-promoted Serie A side Siena named Giuseppe Sannino as their new coach on Monday replacing new Juventus handler Antonio Conte. The 54-year-old was given a warm welcome by club president Massimo Mezzaroma despite of no co
英语新闻