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第二章 消化系统 Chapter 2 Digestive System accessory pancreatic duct 副胰管 accessory parotid gland 副腮腺 aggregated lymphatic follicles 集合淋巴滤泡 alimentary canal 消化管 alimentary gland 消化腺 alimentary system 消化系统 alveolar bone 牙槽骨 am
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This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute ? Germanys Harald zur Hausen and Frances Luc Montagnier and Francoise Barre-Sinoussi share the 2008 Nobel Prize in Physiology or Medicine, awarded October 6th. Barre-Sin
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Mogadishu Offers Little Comfort to Somalis Arriving From Famine Famine is forcing Somalis by the hundreds of thousands to leave their homes in search of survival. Some are fleeing across the border to refugee camps in Kenya and Ethiopia, where intern
VOA标准英语2011年(八月)
The Liver Up Close When viewed under a microscope, the liver is seen as large network of units called hepatic lobules. The hepatic lobule is very small and looks like a six-sided cylinder. The lobule itself is surrounded by connective tissue and has
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By Alisha Ryu Nairobi 02 October 2009 Kismayo, Somalia Al-Shabab militants in Somalia have claimed control of the country's southern port town of Kismayo, one day after deadly fighting with a rival Islamist group. But the city remains tense amid rep
VOA标准英语2009年(十月)
An international group of scientists has engineered an enzyme which they say will be able to eat some of the most common plastic. It's being touted as a possible way to fight pollution. Improvements aimed at making the enzyme work more effectively ar
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