单词:electron device testing
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OK, great, we smell vibrations. How? All right? 好吧,我们闻到的是震动。怎么闻到呢? Now when people ask this kind of question, they neglect something, which is that physicists are really clever, unlike biologists. 当人们问这个问
开车犯困,这是很多人都有过的经历.不过,如果有了下面这种能够让你清醒起来的安全带,开车犯困就不再是问题了. 开车打瞌睡?智能安全带叫醒你 The Daily Mail: A seatbelt that wakes you up if you are in
ENVIRONMENT REPORT - November 22, 2002: Compromise on U.S. Navy Sonar By Cynthia Kirk This is the VOA Special English ENVIRONMENT REPORT. The United States Navy has agreed to temporarily limit testing
AGRICULTURE REPORT December 17, 2002 — Irradiated Meat This is the VOA Special English Agriculture Report. The United States government has approved methods of destroying bacteria in meat by using r
An independent panel of U.S. health experts is recommending that all Americans between the ages of 15 and 65 be routinely screened for HIV, the virus that causes AIDS. The HIV test would not be mandatory. But experts hope more widespread testing migh