单词：biological strain
单词：biological strain 相关文章
Broadcast: Jan 10 2003 The Pentagon has issued a statement 2) asserting the military is prepared to protect its personnel from possible biological weapons attack. On the surface, the Pentagon's assert
VOA2003（上）-健康之旅
The flu epidemic intensified a few week ago, but it continued to worsen with widespread outbreaks being reported in every state except Florida. NBC's Robert Bazell reports. And there's new information tonight about this year's flu epidemic and why i
万花筒2008年
DAVID GREENE, HOST: And we're going to spend some time now in China's far northwestern region, Xinjiang, which is four times the size of California. It's home to a Muslim minority group called the Uighurs. They have had this tense relationship with C
2017年NPR美国国家公共电台9月
今天我们要学的词是 strain. strain 的意思是压力，费力，使足力气。 In China, female pilots strain to hold up half the sky although they account for only 1.3 percent of all the pilot, one of the lowest proportion in the world. 在中
英语单词荟萃
AGRICULTURE REPORT - Biological Controls, Part 1 By Mario Ritter Broadcast: Tuesday, April 13, 2004 This is Steve Ember with the VOA Special English Agriculture Report. Biological controls are living
农业与发展
模仿文本： Anthrax is a potentially deadly disease that caused by a bacteria. Occasionally it is found in nature but the strain found in the letters is the aim strain developed by the USmilitary after the World War II to research biological weap
英音模仿秀