单词:infectious unit
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[00:00.00]Unit 25 [00:05.80]Reading and speaking [00:08.24]A changing city [00:10.53] For centuries,Beijing has been one of China's [00:13.47]most important cities. [00:15.69]Originally a place for emperors and officials, [00:18.14]today it is a weal
DEVELOPMENT REPORT -February 18, 2002: Infectious Diseases By Jill Moss This is the VOA Special English Development Report. The World Health Organization and several other United Nations agencies are
This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? A direct effect on human health related to climate change is the likely increase in infectious diseases transmitted by insects or through contaminated water. In the Marc
BEIJING, Aug. 7 (Xinhua) -- Infectious diseases claimed 1,669 lives on the Chinese mainland in July, with AIDS contributing to 70 percent of the deaths, the Ministry of Health (MOH) said Tuesday. A total of 5,552 AIDS cases, which is categorized as a
A recent study found almost 60 percent of surgical residents admitted they had sustained needlestick injuries when they were medical students. Blunt tip needles, such as this one, are considered safer A recent study shows that medical students and ho
Part 2. Hand Washing. Keywords. spread of viruses, public restrooms, infectious diseases, the correct method. Vocabulary. organism, cholera, hepatitis, infection. A. Before you listen to the material, discuss the following questions. 1. Do you often