不可逆突变

Mummies Contain Clues to Colon Cancer 木乃伊包含了结肠癌的线索 From VOA Learning English, this is the Health and Lifestyle report. Colon cancer is linked with obesity, lack of exercise, and a poor diet high in processed foods. However, sc

发表于:2018-12-16 / 阅读(257) / 评论(0) 分类 2016年VOA慢速英语(三)月

Even before scientists sort this out, this information is actually really good news for us, 即使科学家还尚未解决问题,这一好消息确实振奋人心, because it turns out that the way we live can influence the accumulation of amyloi

发表于:2018-12-18 / 阅读(330) / 评论(0) 分类 TED演讲国际问题篇

This Scientific Americans 60-Second Science. I am Karen Hopkin. This will just take a minute. They say that older folks benefit from spending time with young people. And thats not just an excuse to stick grandma at the kids table at Thanksgiving. Now

发表于:2018-12-24 / 阅读(276) / 评论(0) 分类 Scientific American(五)月

纳尔逊曼德拉的经典语录 I greet you all in the name of peace, democracy, and freedom for all. I stand here before you not as a prophet but as a humble servant of you, the people. Your tireless and heroic sacrifices have made it possible for

发表于:2018-12-30 / 阅读(367) / 评论(0) 分类 名人励志英语演讲

今天我们要学的词是irreversible. Irreversible 形容词,不可逆转的。The European Union's top diplomat welcomed North Korea's announcement of stopping nuclear tests, and called for an irreversible denuclearization of North Korea. 欧盟首

发表于:2018-12-30 / 阅读(214) / 评论(0) 分类 英语单词荟萃

This is scientific American's 60-Second Science, I'm Karen Hopkin, this'll just take a minute. If theres anything better than a fresh, ripe, tomato, its a gigantic fresh, ripe tomato. And thanks to a couple of mutations, thats exactly what we all enj

发表于:2019-01-08 / 阅读(325) / 评论(0) 分类 Scientific American(五)月

1. Joaquin Phoenix, whose portrayal of Johnny Cash in

发表于:2019-01-08 / 阅读(360) / 评论(0) 分类 美联社新闻一分钟2006

Three things in life once gone, never come back: time, opportunity, and words. 人生有三样东西不可挽回:时间,机遇,以及说出去的话。 Expectation is the root of all heartache. 期待是所有心痛的根源。 In life, we all

发表于:2019-01-08 / 阅读(270) / 评论(0) 分类 英语美文

Scientists have identified a unique genetic mutation in about 10 percent of people with type 2 diabetes(糖尿病) studied in the United States and Europe. The discovery could help some people learn if they are at risk of developing diabetes so they

发表于:2019-01-11 / 阅读(405) / 评论(0) 分类 英语新闻

SCIENCE IN THE NEWS - Museum Aims to Keep African Archeological Treasures in Africa Also: A vaccine against meningitis proves successful in Uganda. And a study suggests genetic reasons for living longer. Transcript of radio broadcast: 12 May 2008 VO

发表于:2019-01-11 / 阅读(286) / 评论(0) 分类 VOA慢速英语2008年(五)月

By Challiss McDonough Cairo 23 April 2006 Iranian Foreign Ministry spokesman Hamid Reza Asefi Iran says its uranium enrichment work is

发表于:2019-01-13 / 阅读(330) / 评论(0) 分类 2006年VOA标准英语(四月)

UN Warns of Irreversible Damage to Planet The Global Environmental Outlook, or GEO5, says the world is on an unsustainable path, despite more than 500 international agreements. And scientific evidence says Earth's systems are being pushed toward thei

发表于:2019-01-13 / 阅读(280) / 评论(0) 分类 VOA标准英语2012年(六月)

US Suspends All Economic Sanctions on Burma Secretary of State Hillary Clinton announced the suspension of bans on U.S. financial transactions, investments, and access to credit in a meeting with Burmese Foreign Minister U Wunna Maung Lwin. This is a

发表于:2019-01-13 / 阅读(233) / 评论(0) 分类 VOA标准英语2012年(五月)

U.S. Secretary of State Hillary Clinton said North Korea must commit to irreversible disarmament steps if it returns to multilateral nuclear talks. Clinton held separate meetings on North Korea with her counterparts from Russia, China, Japan and Sou

发表于:2019-01-14 / 阅读(303) / 评论(0) 分类 VOA标准英语2009年(七月)

Science and Technology The science of stuttering Speech therapy 科技 口吃科学 演讲疗法 Unravelling the mystery of faltering speech 解秘演讲时的口吃 DOWN the ages stuttering has been blamed on many things. 多年来,口吃可以归咎

发表于:2019-01-26 / 阅读(354) / 评论(0) 分类 经济学人科技系列

Science and technology 科学技术 Cancer genetics 癌症遗传学 Gene therapy 基因疗法 Genetic mutations predict which cancers will respond to treatment 基因突变将预测某种治疗会对哪些癌症起作用 THE International Cancer Geno

发表于:2019-02-04 / 阅读(297) / 评论(0) 分类 经济学人科技系列

ARI SHAPIRO, HOST: CVID is an acronym you're about to hear a lot. The Trump administration has been using it in the run-up to next week's summit with North Korea. And those four letters have meant different things to different people, as NPR's David

发表于:2019-02-13 / 阅读(361) / 评论(0) 分类 2018年NPR美国国家公共电台6月

为何人类爱吃肉 对多数人类来说,肉的味道非常美妙。众多的美食中,为何我们对它情有独钟呢? It is no less remarkable for people today, even those of us whose tastes run more to sirloin. Because if you look at wh

发表于:2019-02-18 / 阅读(394) / 评论(0) 分类 阅读空间

Surviving Cancer Twice 两次战胜癌症 After overcoming ovarian and breast cancer, the actress opens up about getting healthy, returning to work and the health challenge she still faces 在克服了卵巢癌和乳腺癌之后,这位女演员开始

发表于:2019-02-21 / 阅读(372) / 评论(0) 分类 人物杂志

Who do you think your pet is? Learning from Your Dog's DNA 你认为你的宠物是谁?狗狗DNA中的发现 A simple cheek swab can reveal your dog's ancestry, provide insight into its health and even help explain its behavior 擦一下狗的脸就可

发表于:2019-02-21 / 阅读(377) / 评论(0) 分类 人物杂志
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Langwell
Leaf-Tailed
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