标签：Stem Cell 相关文章

最佳理工科工作排行榜：第一名居然是...

最近，《美国新闻周刊》发布了一份最佳理工科工作排行榜： Best S.T.E.M. Jobs 它综合考虑了工资、预期职位空缺数量、提升机会以及职业成就感。 虽然这个榜单主要针对美国的就业市场，但它

发表于:2018-11-29 / 阅读(102) / 评论(0) 分类 求职英语

美语听力 English Café 441

Topics: Ask an American Saving the oldest photograph; law versus rule versus policy; to stem from versus to be derived from; bring it on; infomercial; hawking; exercise fad Words: studio to show (something) off luminous three-dimensional nanoparticle

发表于:2018-11-30 / 阅读(78) / 评论(0) 分类 美语听力 English Cafe

NPR 2008-09-26

After a summit at the White House today between top congressional leaders, the president and both presidential candidates as well, a proposed 700-billion-dollar financial bailout deal now appears to be in some flux. NPR's Debbie Elliott has more. Co

发表于:2018-12-02 / 阅读(82) / 评论(0) 分类 2008年NPR美国国家公共电台九月

研究人员利用脑细胞延缓老鼠衰老

Researchers Use Brain Cells to Control Aging in Mice It is a question people have been asking forwell-- ages. Is there a way to turn back the aging process in people? For centuries, people have been looking for a fountain of youth. The idea is that i

发表于:2018-12-07 / 阅读(52) / 评论(0) 分类 2017年VOA慢速英语(八)月

UNIT 2 Plant a Plant! Lesson 12: Pretty Little Plant

[ti:UNIT 2 Plant a Plant! Lesson 12: Pretty Little Plant] [0:00.241]UNIT 2 第二单元 [0:01.877]Plant a Plant! 培育植物 [0:03.754]Lesson 12: 第12课： [0:05.391]Pretty Little Plant 漂亮的小植物 [0:08.856]You need two groups to sing this

发表于:2018-12-13 / 阅读(133) / 评论(0) 分类 河北教育初中英语（初中起点）八年级下册

UNIT 2 Plant a Plant! Lesson 15: Danny Grows Grain!

[ti:UNIT 2 Plant a Plant! Lesson 15: Danny Grows Grain!] [0:00.293]UNIT 2 第二单元 [0:01.961]Plant a Plant! 培育植物 [0:03.672]Lesson 15: 第15课： [0:05.842]Danny Grows Grain! 丹尼种粮食！ [0:08.637]Date: 日期： [0:09.639]March 28

发表于:2018-12-13 / 阅读(121) / 评论(0) 分类 河北教育初中英语（初中起点）八年级下册

VOA慢速英语2013 防治疟疾，脑癌和肺结核

AS IT IS 2013-09-02 Fighting Malaria, Brain Cancer and TB 防治疟疾，脑癌和肺结核 Welcome to As It Is, from VOA Learning English. Im Christopher Cruise. Today, well report the latest news in the fight against three deadly enemies: malaria,

发表于:2018-12-16 / 阅读(55) / 评论(0) 分类 2013年VOA慢速英语(九)月

VOA慢速英语--科学家离创造实验室胚胎更近了一步

Scientists Come Closer to Creating Laboratory Embryos An international team of scientists says it has moved a step closer to creating artificial embryos. The team used stem cells from mice. Stem cells are simple cells that can develop into other kind

发表于:2018-12-17 / 阅读(36) / 评论(0) 分类 2018年VOA慢速英语(八)月

VOA慢速英语2003年-Cheryl Crow

Broadcast: Jan 24, 2003 By Jill Moss, Nancy Steinbach and Paul Thompson Welcome to AMERICAN MOSAIC--VOA's radio magazine in Special English. This is Doug Johnson. On our program today, We play some mu

发表于:2018-12-18 / 阅读(80) / 评论(0) 分类 VOA2003（上）-美国故事

Growing Tomatoes

By Mario Ritter Broadcast: August 25, 2003 This is Bill White with the VOA Special English Agriculture Report. Plant scientists consider them fruit. Most other people think of them as vegetables. What

发表于:2019-01-02 / 阅读(88) / 评论(0) 分类 VOA2003（下）-农业与经济

VOA慢速英语 2007 1204b

VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Steve Ember. VOICE TWO: File photo of embryonic stem cells in a laboratory dish And I'm Pat Bodnar. This week, we will tell about efforts to make what appear to be embryonic stem cel

发表于:2019-01-11 / 阅读(148) / 评论(0) 分类 VOA慢速英语2007年（十二）月

VOA慢速英语2011--In the Garden: Growing Blueberries

Agriculture Report - In the Garden: Growing Blueberries 农业报道 - 蓝莓种植 This is the VOA Special English Agriculture Report. 这里是美国之音慢速英语农业报道。 Blueberries are generally grown in northern climates with cool wi

发表于:2019-01-12 / 阅读(83) / 评论(0) 分类 2011年VOA慢速英语(十)月

英国学生科学读本 第63期:有用的椰子(2)

This soft black mark is the place through which the young palm-tree would force its way out, if the cocoanut were planted in the soil of its native land. 如果种植在原生地的土壤之中，年幼的椰子树就会通过这个柔软的黑色斑点

发表于:2019-01-17 / 阅读(63) / 评论(0) 分类 英国学生科学读本

【英语2级听力】他弄丢了他的手机-Losing Her Cell Phone

She reaches into her pocket. Her cell phone is gone. She looks under her bed. All she sees are some coins. She looks under her couch. All she sees are some pencils. She has an idea. She calls her cell phone number with another phone. She hears a ring

发表于:2019-01-24 / 阅读(49) / 评论(0) 分类 英语第2级听力-English Level 2

HEALTH REPORT - Cell Phones Linked to Benign Tumors

HEALTH REPORT - Cell Phones Linked to Benign Tumors By Cynthia Kirk Broadcast: Wednesday, November 03, 2004 This is Gwen Outen with the VOA Special English Health Report. A Swedish study suggests that

发表于:2019-01-30 / 阅读(76) / 评论(0) 分类 健康与经济

HEALTH REPORT - Study Shows No Link Between Cell Phones and

HEALTH REPORT - Study Shows No Link Between Cell Phones and Rare Tumor By Cynthia Kirk Broadcast: Wednesday, September 07, 2005 I'm Barbara Klein with the VOA Special English Health Report. New resear

发表于:2019-01-30 / 阅读(102) / 评论(0) 分类 健康与经济

英国学生科学读本 第30期:马铃薯(2)

Below the ground the stem is swelling out into little beads that will grow into new potatoes for us. The earthmust be piled up round the stems, so as to cover the potatoes and keep them from the light. 地下的茎会长出小珠子一样的东西, 小

发表于:2019-02-13 / 阅读(91) / 评论(0) 分类 英国学生科学读本

英国学生科学读本 第26期:摘毛茛(1)

Lesson 26 Picking Buttercups 第26课 摘毛茛 You all like to gather the yellow flowers called buttercups. The flowers are pretty, but there are other partsof the plant which you should look at. Let us dig up the whole plant with a big knife, and t

发表于:2019-02-13 / 阅读(68) / 评论(0) 分类 英国学生科学读本

英国语文第三册 第66期:花的习性(上)

LESSON 56 Habits of flowers 第五十六课 花的习性 Nearly all flowers turn towards the light, as if they loved it. 几乎所有的花都有向阳的,好像它们很喜欢太阳. This can be seen by watching plants that are standing near a windo

发表于:2019-02-13 / 阅读(49) / 评论(0) 分类 英国语文第三册

剑11阅读生词文章注解--passage3

剑桥雅思11发售后，很多同学都争相购买，老师们也是加班加点看新题，当下命题趋势变幻莫测，全靠剑桥系列指引方向。今天方振华老师为同学们带来剑11阅读生词文章注解。 stride 进步 ste

发表于:2019-02-19 / 阅读(91) / 评论(0) 分类 雅思英语
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