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第四章 脑和脊髓的被膜、血管及脑脊液循环 Chapter 4 Mininges and Blood Vessels of Brain and Spinal Cord, and Circulation of Cerebrospinal Fluid anterior cerebral artery 大脑前动脉 anterior choroids artery 脉络丛前动脉 anterior communicating artery 前
医学英语
Time spent in zero G changes the body: Astronauts come home with bone loss and muscle weakness. But what happens in their heads? To find out, researchers examined MRIs of astronauts brains taken before and after flight. They looked at 12 astronauts w
2017年Scientific American(二)月
By Kate Pound Dawson /Michael Coren Hong Kong / Pangandaran, Indonesia 18 July 2006 Destroyed fishing boats are seen after a tsunami swept past the beach in Kebumen, Central Java, Indonesia, Tuesday, July 18, 2006 A major earthquake off the Indonesi
2006年VOA标准英语（七月）
Budget Cuts Hit US Foreign Aid Programs Mandatory federal cuts Like other federal agencies, the U. S. Agency for International Development has to cut its budget as a result of sequestration. The four-percent USAID must cut will reduce its foreign ass
VOA标准英语2013年(四月)
BEIJING, June 25 (Xinhua) -- Tents, quilts, coats and other relief materials have been sent to southwest China's Yunnan and Sichuan provinces in the wake of an earthquake that jolted the area on Sunday, the Ministry of Civil Affairs said Monday. Loca
英语新闻
In Sri Lanka, aid agencies say a crowded hospital in the northern war zone has been shelled, killing at least nine people. The attack on the hospital comes amid growing concerns for an estimated 250,000 civilians caught in the fighting between the g
VOA标准英语2009年(二月)