英语四级

听力入门英语演讲VOA慢速英语美文听力教程英语新闻名校课程听力节目影视听力英语视频

Bringing Nanotechnology to Health Care for the Poor

andyg 于2007-03-04发布 l 已有人浏览
增大字体 减小字体
&raquo Download Audio(mp3) By Jill Moss 2007-3-4 This is the VOA Special English Development Report. N

» download audio(mp3)
by jill moss
2007-3-4

this is the voa special english development report.

nanotechnology uses matter at the level of molecules and atoms. researchers are finding different uses for particles with a length of one nanometer, or one-billionth of a meter. these include things like beauty products and dirt-resistant clothing. but one area where many experts believe nanotechnology holds great promise is medicine.

last week, speakers at a program in washington discussed using nanotechnology to improve health care in developing countries. the program took place at the woodrow wilson international center for scholars.

peter singer at the university of toronto says a nanotechnology called quantum dots could be used to confirm cases of malaria. he says it could offer a better way than the traditional process of looking at a person's blood under a microscope.

in poor countries, this process is often not followed. as a result, sick people may get treated for malaria even if they do not have it. such misuse of medicines can lead to drug resistance.

 1 2 3 下一页

分享到

添加到收藏

VOA慢速排行