细胞匀(浆)化作用

Lesson 66 Sweet as honey!像蜜一样甜! First listen and then answer the question. 听录音,然后回答以下问题。 What was 'sweet as honey' and why? In 1963 a Lancaster bomber crashed on

发表于:2018-11-28 / 阅读(231) / 评论(0) 分类 新概念英语第二册

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

发表于:2018-12-11 / 阅读(62) / 评论(0) 分类 万花筒2008年

1.The World Health Organization is sending resources to Mexico to get a handle on an illness outbreak tied to a new strain of swine flu. So far, 57 deaths have been reported. Scientists are trying to determine if the same strain sickened eight peopl

发表于:2018-12-15 / 阅读(97) / 评论(0) 分类 美联社新闻一分钟2009年(四)月

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

发表于:2018-12-17 / 阅读(42) / 评论(0) 分类 2017年NPR美国国家公共电台9月

Rannoff, it's a great story, something that I really havent thought about before. I guess just because I havent seen it personally while sitting on an airplane. But I imagine they must be most worried about the people who are transferring them from t

发表于:2018-12-20 / 阅读(35) / 评论(0) 分类 cnn2009年(十二)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

发表于:2018-12-30 / 阅读(39) / 评论(0) 分类 英语单词荟萃