单词：self-antigens
单词：self-antigens 相关文章
Black and White All colors are special, but there are something about black and white. And I am talking about the combination here that has real power. Black and white make people focus, they say that most people dream in black and white, I wonder wh
时尚英语话题
Yael: I just read about an exciting technique. Researchers found a way to convert types A and B blood into type O blood--the type that can be transfused into any patient. This advance could help avoid blood shortages in the future. Don: Wow, that is
初学者听力文摘精选
衣橱里衣服成堆，可还是觉得没有衣服穿?不如找一天来一场衣橱血拼吧。你不用花一分钱，只需把衣服全部整理一遍，就有可能会发现好几件很不错的新衣服。 Closet shopping is a kind of shopping
英文语法词汇
【背景】 血型分类: 一般常见A、B、AB和O四种，另外还有RH、MNS、P等极为稀少的10余种血型系统。其中，AB型可以接受任何血型的血液输入，因此被称作万能受血者，O型可以输出给任何血型的人
英语听力广播—Listening
Broadcast: April 30, 2003 By Nancy Steinbach This is the VOA Special English Health Report. American researchers say drinking tea may help strengthen the body's defense system against infection. Docto
VOA2003（上）-健康资讯
This is the VOA Special English Health Report. Scientists may have found a way to reduce shortages of type O blood. Type O is the kind of blood that hospitals most often need. What the researchers are testing is an easier way to make type O blood ou
VOA慢速英语2007年（五）月
Yael: I just read about an exciting technique. Researchers found a way to convert types A and B blood into type O blood--the type that can be transfused into any patient. This advance could help avoid blood shortages in the future. Don: Wow, that is
英语听力文摘 English Digest
HEALTH REPORT - Kidney Transplants By Nancy Steinbach Broadcast: Wednesday, April 21, 2004 This is the VOA Special English Health Report. Each year, thousands of people receive organ transplants. The
健康与经济