You cant judge a book by its cover. But you can judge a dog by its coat. You can even read right through to its genes. Because a study in the August 27th online issue of Science shows that just three key genes govern the length and texture of dog fur

发表于:2018-12-24 / 阅读(53) / 评论(0) 分类 Scientific American(八)月

The Bird Flu Recently , the news has been filled with reports of the “bird flu.” Asia is on a region-wide health alert, with governments slaughtering millions of chickens to contain 1 outbreaks

发表于:2018-12-30 / 阅读(83) / 评论(0) 分类 英语沙龙2004全年合辑上

Scientists say they have made a leap in knowing why some people retain their youthful looks while others age badly. 科学家称他们已经在探究为什么有的人青春长驻而另一些人逐年老去这一问题上取得突破性进展。 They

发表于:2019-02-01 / 阅读(27) / 评论(0) 分类 阅读空间

克里姆林宫决定斯诺登的未来 MOSCOW, June 30 (Xinhua) -- As Edward Snowden has been perching at an international airport of Moscow for a week, Kremlin said Sunday the former CIA contractor's future was not yet on its agenda. The President

发表于:2019-02-06 / 阅读(40) / 评论(0) 分类 英语新闻

Business 商业报道 Civilian jet engines 民用航空发动机 Gearing up for a fight 奋力一战 Pratt amp; Whitney hopes a high-tech engine will restore its former dominance. 普拉特惠特尼公司期待其新款的高科技航空发动机能重

发表于:2019-03-09 / 阅读(139) / 评论(0) 分类 经济学人商业系列

Disputes and reorderings of much the same type can be found in all the other realms of the living, 同样的争吵,同样的重新分类,也发生在所有别的生物领域, so keeping an overall tally is not nearly as straightforward a matter

发表于:2019-03-17 / 阅读(314) / 评论(0) 分类 万物简史