Wheat helped create civilization in the Middle East. Its a staple crop for 30 percent of the worlds population. And now, with the publication of four articles in the journal Science, were close to a detailed understanding of the bread wheat genome. W

发表于:2019-01-20 / 阅读(165) / 评论(0)

未知分类

科学美国人60秒 SSS 2014-07-15

If you need a new liver, doctors have about twelve hours to transport it from a donor. That ticking clock severely limits the ability of doctors to get organs to patients. Now researchers have demonstrated a method that kept rat livers viable up to f

发表于:2019-01-20 / 阅读(137) / 评论(0)

未知分类

科学美国人60秒 SSS 2014-07-14

发表于:2019-01-20 / 阅读(162) / 评论(0)

未知分类

科学美国人60秒 SSS 2014-07-11

发表于:2019-01-20 / 阅读(154) / 评论(0)

未知分类

科学美国人60秒 SSS 2014-07-10

Sorry,there is not text temporarily, Please help tingroom to look for it! 如果您能找到更好的听力原文，请发贴到听力原文收集区，您将会获得10到30积分的奖励! Thank you！

发表于:2019-01-20 / 阅读(197) / 评论(0)

未知分类

科学美国人60秒 SSS 2014-07-09

发表于:2019-01-20 / 阅读(207) / 评论(0)

未知分类

科学美国人60秒 SSS 2014-07-08

This is Scientific Americans 60-Second Science. I am Synthia Graber. Got a minute? Wander where and when the next major river flood would had, just look up to the satellites. Conventional estimates a river volumes come from rain fall of course and fr

发表于:2019-01-20 / 阅读(165) / 评论(0)

未知分类

科学美国人60秒 SSS 2014-07-07

these years the number of mobile phones on sale members is expected to surpass the earth population. More people now on cell phones when they are access to the toilets.Kings Medal, college of university of organ hit the data of the reality that some

发表于:2019-01-20 / 阅读(148) / 评论(0)

未知分类

科学美国人60秒 SSS 2014-07-04

This year the number of mobile phones on ... the population. More people now on cellphones actually have access to toilets. James Middle of micro... colleges at the university of Organ. Here in the data is the reality that some people work on their p

发表于:2019-01-20 / 阅读(153) / 评论(0)

未知分类

科学美国人60秒 SSS 2014-07-03

发表于:2019-01-20 / 阅读(136) / 评论(0)

未知分类

科学美国人60秒 SSS 2014-07-02

This year, the number of mobile phones on cell networks is expected to surpass the Earth's population. More people now own cell phones than actually have access to working toilets. James Meadow, a microbial ecologist at the University of Oregon. Hidd

发表于:2019-01-20 / 阅读(154) / 评论(0)

未知分类

科学美国人60秒 SSS 2014-07-01

Getting malaria stinks. Literally. According to a new study, malaria victims give off odors that attracts mosquitoes. And the insects that feed on the infected sufferer are then more likely to spread the disease. The work appears in the Proceedings o

发表于:2019-01-20 / 阅读(169) / 评论(0)

未知分类

科学美国人60秒 SSS 2014-2-10

The drug trade has devastated the communities in central South America. Policy-makers are now looking at moving away from trying to stop drug production to trying to curve demand. If it works,and all kinds of producers lose power, central america's f

发表于:2019-01-20 / 阅读(150) / 评论(0)

未知分类

科学美国人60秒 SSS 2014-2-03

This is scientific American 60 seconds science.I'm - .Got a minute. When it comes to the percentage bachelors degrees earned by women,physics ,trails, biology, chemistry, earth sciences and math and women made up just 40 percent of physics college fa

发表于:2019-01-20 / 阅读(170) / 评论(0)

未知分类

科学美国人60秒 SSS 2014-2-04

This is Scientific American sixty seconds science. I am Clara Muscovites. Got a minute? When comes to the percentage of bachelor degrees earned by women, physics trailed biology, chemistry, earth science and math. And women made just 14% of physics c

发表于:2019-01-20 / 阅读(164) / 评论(0)

未知分类

科学美国人60秒 SSS 2014-2-07

发表于:2019-01-20 / 阅读(197) / 评论(0)

未知分类

科学美国人60秒 SSS 2014-2-11

The drug trade has devastated communities in central and south America. Policy makes are looing at moving away from trying to stop drug production to trying to curb demand. If it works and Nakada producers lose power, central american's forest will b

发表于:2019-01-20 / 阅读(152) / 评论(0)

未知分类

科学美国人60秒 SSS 2014-2-12

发表于:2019-01-20 / 阅读(175) / 评论(0)

未知分类

科学美国人60秒 SSS 2014-2-13

Stress sucks. It can affect your body and mind. Previous research has shown that the stress can even hinder our ability to remember; but these studies have typically focused on one stress at a time. What happens if we face multiple stresses? Research

发表于:2019-01-20 / 阅读(164) / 评论(0)

未知分类

科学美国人60秒 SSS 2014-2-05

发表于:2019-01-20 / 阅读(192) / 评论(0)

未知分类

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

alphageometric system

andirobas

Anopheles annulipes annulipes

Anyudin

atars

automatic temperature regulation

Barotac Nuevo