By Melinda Smith Washington, DC 14 September 2006 watch Alzheimer report Researchers say it may soon be possible to scientifically diagnose Alzheimer's disease, without having to wait for autopsy confirmation after the patient has died. Clinical tri

发表于:2019-01-06 / 阅读(90) / 评论(0) 分类 2006年VOA标准英语(九月)

By Nancy Steinbach Broadcast: July 30, 2003 This is Bill White with the VOA Special English Health Report. A medical study says foods rich in a kind of fat may help prevent Alzheimer's disease. Alzhei

发表于:2019-01-07 / 阅读(85) / 评论(0) 分类 VOA2003(下)-环境与健康

[00:00.00]Unit 3 [00:03.68]1.Look at the words first.Then listen and read. [00:52.66]The king fisher King fishers are beautiful birds. [00:59.61]They live in many countries of the world. [01:03.76]They eat small fish. [01:07.53]Kingfishers are in da

发表于:2019-01-09 / 阅读(121) / 评论(0) 分类 剑桥小学英语

Australian scientists say an organic compound used by Indian women to paint dots or bindi on their foreheads could hold the key to a breakthrough in cancer treatment. Rose Bengal was first used in the early 1900s as a dye for food, textiles and cosm

发表于:2019-01-11 / 阅读(51) / 评论(0) 分类 VOA标准英语2008年(八月)

[00:05.46]Lesson 15 [00:07.32]1.Learn to say. [00:10.15]Boys and girls,now look at these animals. [00:13.45]孩子们,现在看看这些动物. [00:14.46]What do you know about them? [00:16.42]你们对它们都知道些什么? [00:18.06]Turtles lay

发表于:2019-01-15 / 阅读(169) / 评论(0) 分类 闽教版小学英语六年级下

ROBERT SIEGEL, HOST: We're going to hear now how doctors in Europe used genetically engineered skin cells to treat a child who was on the verge of death from a rare inherited disease. The treatment represents a notable success for the field of gene t

发表于:2019-01-16 / 阅读(38) / 评论(0) 分类 2017年NPR美国国家公共电台11月