单词：protection device test
单词：protection device test 相关文章
This is the VOA Special English Health Report. Scientists continue to look for ways to deal with the deadly form of bird flu virus. Medical workers care for a bird flu patient in Medan, Indonesia, last year Researchers in Singapore, for example, hav
VOA慢速英语2007年（十）月
AS IT IS 2015-04-07 Mobile Device Diagnoses HIV, Syphilis in Minutes 移动设备在几分钟内可以检测出HIV和梅毒病毒 Diagnosing sexually transmitted diseases like syphilis and HIV, the virus that causes AIDS, require costly tests. Poor p
2015年VOA慢速英语(四)月
At this time of year, the schools have tests of all kinds for the children. Reading and writing tests, math skills tests, and tomorrow, there will be hearing and vision tests for the whole school. If you think about it, the two last mentioned tests a
英语博客 A cup of English
标准名称Code Standard Name Fire Prevention Code防火规范 Uniform Fire Code, 2003 Edition （incorporates provisions from both the Fire Prevention Code and the WFCAs Uniform Fire Code）统一消防规范 2003版 Standard for Portable Fire Extinguishers手提灭火
英文语法词汇
Small kits are now available similar to pregnancy tests that can determine whether a person is infected with HIV, the AIDS virus. But the tests can give a false positive reading if used incorrectly, possibly dealing an emotional or psychological blow
VOA标准英语2010年(七)月
China is now on the front lines of efforts to develop energy sources that can balance the goals of sustaining economic growth and protecting the environment. Decisive action is needed to strengthen policy frameworks across the country to reach that g
cctv9英语新闻2015年