[化] 苯基-a-萘胺; 苯基-1-萘胺(抗氧剂)

万物简史第478期:生命在前进(20)

Many of the Burgess specimens have now been assigned to living phyla just where Walcott put them in the first place. 许多布尔吉斯标本现在已经归到活着的动物的门里就是沃尔科特最初放置它们的地方。 Hallucigenia and s

发表于:2018-12-18 / 阅读(159) / 评论(0)

万物简史

Identity Thieves’ New Ploy: Pharming

Identity Thieves’ New Ploy: Pharming 2 How do people pharm? Pharming scams take a few different forms: Attackers could use malicious code, such as a virus, planted on a user’s PC to track keystrok

发表于:2018-12-19 / 阅读(239) / 评论(0)

彭蒙惠英语

SSS 2011-03-29

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? To keep your car purring, you have to change the oil. Such maintenance produces eight billion gallons of used motor oil annually. Some waste oil does get re-refined to pro

发表于:2018-12-24 / 阅读(135) / 评论(0)

Scientific American(三)月

英文书摘精选有趣的事实,短嘴鳄可以再长牙齿

Fun Fact: Alligators Can Regrow Teeth 有趣的事实：短嘴鳄可以再长牙齿 Fun fact about alligators: they can regrow any of their eighty teeth up to fifty times. Which is pretty impressive, especially compared to us relatively dentally chal

发表于:2018-12-28 / 阅读(114) / 评论(0)

初学者听力文摘精选

各国名人英文介绍-Indra Krishnamurthy

Indra Krishnamurthy Nooyi is the chairwoman and CEO of PepsiCo, which is the world's fourth-largest food and beverage company. She broke the mould at PepsiCo as all previous CEOs were white American men. Nooyi was fifth on Time magazines 2007 list of

发表于:2019-01-01 / 阅读(162) / 评论(0)

各国名人英文介绍

PEOPLE IN AMERICA - Dorothy West

PEOPLE IN AMERICA - May 12, 2002: Dorothy West By Doreen Baingana VOICE ONE: I'm Shirley Griffith. VOICE TWO: And I'm Steve Ember with the Special English Program, PEOPLE IN AMERICA. Every week, we te

发表于:2019-01-07 / 阅读(239) / 评论(0)

People in America

SSS 2008-04-17

This is Scientific American's 60-Second Science. I am Steve Mirsky.Got a minute? Talk about your vicious cycles. A new study finds that belly fat could be making you hungrier. Which would lead to more belly fat. The research was performed at the Univ

发表于:2019-01-08 / 阅读(155) / 评论(0)

Scientific American(四)月

SSS 2009-11-13

Algae seem harmless enough. These precursors to plants thrive throughout the world's waters. But these single-celled plants have global consequences. We can thank them for oxygen in the atmosphere, oil in the lithosphere as well as dead zones in the

发表于:2019-01-08 / 阅读(159) / 评论(0)

Scientific American(十一)月

Sympathy and Care同情与关心

1.- I have a cold. 我感冒了。 - I'm sorry to hear that. 听到这消息我很难过。 2. - What's wrong (the matter, the trouble)? You look unhappy. 怎么啦？您看起来脸色很不好。 - I failed the exam. 我考试没通过。 - Don't t

发表于:2019-01-11 / 阅读(158) / 评论(0)

实用英语

Expressing Sympathy 慰问

Key Sentences（重点句子） 474．We're sorry to learn that you were injured in an accident. 得知你在事故中受伤，我很遗憾。 475．How are you feeling now? 现在感觉怎么样？ 476．We all wish you a quick recovery. 我们都希望

发表于:2019-01-11 / 阅读(144) / 评论(0)

实用英语

VOA标准英语2009年-Analysts: US Economy Key to Latin American Rela

The best way to improve U.S. relations with Latin America is by fixing the U.S. economy, according to analysts who testified before a Congressional committee in Washington on Wednesday. They told U.S. lawmakers that President Barack Obama should add

发表于:2019-01-13 / 阅读(143) / 评论(0)

VOA标准英语2009年(三月)

新编英语教程第六册unit01_1_Love_Thy_Neighbor

发表于:2019-01-25 / 阅读(211) / 评论(0)

新编大学英语阅读部分

Researchers make sperm from stem cell in dish

WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo

发表于:2019-02-04 / 阅读(297) / 评论(0)

英语新闻

Ganso could be out until 2013, says physio

Ganso could be out until 2013, says physio RIO DE JANEIRO, Sept. 28 (Xinhua) -- Brazil midfielder Paulo Henrique Ganso could be forced to wait until next year to make his debut for new club Sao Paulo. Ganso, who joined the Brazilian top division outf

发表于:2019-02-06 / 阅读(209) / 评论(0)

英语新闻

AlphaGo围棋排名超越柯洁成为世界第一棋手

AlphaGo is now the world's No 1 Go player, ending thousands of years of human dominance in the game. AlphaGo现在已经成为世界第一围棋手，结束了几千年的人类在该棋类的统治地位。 According to the latest GoRating, AlphaGo

发表于:2019-02-13 / 阅读(166) / 评论(0)

英语新闻

AlphaGo背后的人脑

Lee Se-Dol is the world champion of Go, the ancient Chinese board game that is considered the worlds most complex. This week, the South Korean took on an artificially intelligent computer program called AlphaGo created by DeepMind, a British company

发表于:2019-02-17 / 阅读(213) / 评论(0)

阅读空间

李世石对弈AlphaGo扳回一局

Mark one up for man over the machine. The world champion of the ancient Chinese board game of Go has finally found a way to beat Googles AlphaGo computer, after losing three straight games last week. 这是人类战胜机器的时刻，世界围棋冠军

发表于:2019-02-18 / 阅读(149) / 评论(0)

英语新闻

AlphaGo击败李世石被授名誉九段

Google's artificial intelligence (AI) program AlphaGo on Tuesday triumphed in its final game against South Korean Go grandmaster Lee Sedol to win the five-game series 4-1. 周四，谷歌人工智能程序AlphaGo在与韩国围棋高手李世石的最后

发表于:2019-02-18 / 阅读(161) / 评论(0)

英语新闻

英语听力—环球英语 1112 Alpha Boys School

Voice 1 Welcome to Spotlight. Im Ryan Geertsma. Voice 2 And Im Robin Basselin. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 That is the sound of reggae

发表于:2019-02-21 / 阅读(157) / 评论(0)

环球英语 Spotlight

2016年CRI Chinese Top Go Players: AlphaGo Can Eventually Beat All Human Players

Ke Jie says the machine is improving its play every day, which is hard for human beings to achieve. I said before that I could beat AlphaGo easily and now I still believe I have more chances to win the match against AlphaGo. But the thing is AlphaGo

发表于:2019-03-04 / 阅读(195) / 评论(0)

2016CRI中国国际广播电台

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学英语单词

AC45

acceptance of persons

actual authority

address identification

alternating current distribution

aminosugars

amoebous

anaerobic glycolysis

antural-circulation steam generator

arithmetical continuum

ask price