[医] 酵母自溶物培养基

SSS 2009-04-14

This is Scientific American's 60-Second Science. I'm Christie Nicholson . Got a minute? Altruism poses a problem for the theory of survival of the fittest. If we help others at a cost to ourselves, nice-guy behavior should die out, because we are giv

发表于:2019-01-08 / 阅读(60) / 评论(0)

Scientific American(四)月

VOA慢速英语2014 作为死人与外界沟通桥梁的女人

AS IT IS 2014-08-16 Woman Works as Bridge to the Dead 作为死人与外界沟通桥梁的女人 All humans share two life events birth and death. However, people deal with death in many different ways. Culture, religion, personal beliefs and fear al

发表于:2019-01-12 / 阅读(32) / 评论(0)

2014年VOA慢速英语(八)月

美国国家公共电台 NPR Scientists Closer To Creating A Fully Synthetic Yeast Genome

AUDIE CORNISH, HOST: Scientists have taken a big step towards making synthetic life. In other words, they figured out how to create a living thing with DNA that was written in a lab. NPR health correspondent Rob Stein has the details. ROB STEIN, BYLI

发表于:2019-01-16 / 阅读(74) / 评论(0)

2017年NPR美国国家公共电台3月

科学美国人60秒 SSS Nobel in Physiology or Medicine to Yoshinori Ohsumi for Autophagy Discoveries

The 2016 Nobel Prize in Physiology or Medicine goes to Yoshinori Ohsumi of Japan for his discoveries of mechanisms of whats known as autophagy. Break the word down and you get auto and phagy: from the Greek for self, auto, and eating, phagein. So, se

发表于:2019-01-17 / 阅读(95) / 评论(0)

2016年Scientific American(十)月

饮红酒会延年益寿

Red wine can extend life and counter the negative effects of an unhealthy high-fat diet, according to a new study by Harvard Medical School. A natural substance found in red wine can extend life and counter the negative effects of an unhealthy high-f

发表于:2019-02-07 / 阅读(117) / 评论(0)

阅读空间

【英语语言学习】死亡之桥

All humans share two life events birth and death. However, people deal with death in many different ways. Culture, religion, personal beliefs and fear all influence our reactions. Sometimes death seems so sad that we look for help, for comfort, somet

发表于:2019-02-16 / 阅读(27) / 评论(0)

英语语言学习

最新学习文章

热门学习文章

热门标签

英语听力 VOA标准英语 VOA 英语歌曲口语听力提高听力材料听力教程英语学习 NPR 英语口语 VOA慢速英语美国国家电台儿童英语 VOA英语小学英语 cnn VOA常速英语标准英语英文歌曲听电影学英语英语单词英文电影慢速英语 CRI 美联社新闻美国有线新闻加州分级澳洲新闻流行歌曲常速英语 ABC新闻快递疯狂英语英语读物听力棚车少年经济学人英语词汇商务英语 VOA双语新闻 BBC 中国电台大学英语 Treasures 加州语文 BBC英语英语听力网站 VOA英语教学词汇万花筒 SSS VOA英语听力 AP 新概念分级英语英语广播听力精选英语播客英文绘本 TED演讲赖世雄英语MP3 CCTV9英语新闻 lesson 英语新闻初中英语学英语英语语法历史上的今天英文广播剧英语游戏原版英语小说英语有声读物书虫英语牛津英语读物访谈录新闻一分钟考研英语英语每日在线听新闻 Us 新概念英语地道英语单词第二册自然百科高中英语 sports 实用英语 MP3听力辛沛沛 ESL英语第一册英语每日一句 unit 新东方 GRE 每日一词 BBC听力

学英语单词

back-to-back letter of credit