标签：水和酒精分子 相关文章

美联社新闻一分钟 AP 2015-4-23

1. Federal officials say 6 people are under arrest. mostly in Minnesota. They are accused of traveling to Syria to support Islamic State militants or trying. 2. The Boston Marathon will be held Monday, the second since 2013 bomb attack. About 30,000

发表于:2018-12-15 / 阅读(113) / 评论(0) 分类 美联社新闻一分钟2015(四)月

美联社新闻一分钟 AP 2015-07-6

This is AP news minute. 1. The US and Turkey have agreed on the outlines of a plan to drive Islamic States militants from an area of Syrian on the Turkish border. The plan opens the possibility of a save heaven for tens of thousands of displaced Syri

发表于:2018-12-15 / 阅读(76) / 评论(0) 分类 美联社新闻一分钟2015(七)月

美联社新闻一分钟 AP 2015-07-31

This is AP news minute. 1. Bobbi Kristina Brown dead on Sunday, 6 months after she was found face-down in a bathtub. The 22-year-old was the daughter of the late singer Whitney Houston and singer Bobby Brown. 2. President Obama began the day in Ethio

发表于:2018-12-15 / 阅读(99) / 评论(0) 分类 美联社新闻一分钟2015(七)月

英国学生科学读本 第88期:冷凝(2)

Thus by heating liquids we cause them to evaporate, or change into vapours or gases; 因此, 可以看出：我们能够通过加热液体使得它们蒸发, 变成水蒸气或气体； and by taking away heat from these gases, or cooling them, we tu

发表于:2018-12-18 / 阅读(64) / 评论(0) 分类 英国学生科学读本

【英音模仿秀】本是同根生 相煎何太急

模仿文本： Political rules in America dictate that anyone hoping to get rather top jobs in the administration must first face what's called a confirmation hearing. Basically that involves being grilled by the relevant congressional committee. T

发表于:2018-12-28 / 阅读(65) / 评论(0) 分类 英音模仿秀

2010年麻省理工学院清洁能源奖揭晓(有声)

Time for M.I.T.s Clean Energy Prize. The annual competition gives teams of university students a chance to compete for $200,000 to kick-start their new clean energy business. One finalist designed a compression technology for natural gas wells that w

发表于:2019-01-02 / 阅读(291) / 评论(0) 分类 60秒科学

TED演讲:在体内寻找癌细胞的小颗粒(3)

In my lab, we recently made a cancer nanodetector 在我的实验室，我们最近研制出了一种癌症纳米检测器， that is so small that it could travel into the body and look for tumors. 小到可以进入全身血液循环并寻找肿瘤。

发表于:2019-01-03 / 阅读(86) / 评论(0) 分类 TED演讲科学篇

AP美联社一分钟新闻 2009-01-01

1.In Gaza, signs Israel is preparing for a possible ground invasion with tanks and vehicles lined up along a road leading to the Gaza Strip. Israel has been pounding Hamas militants from the air in response to rocket attacks, almost 400 are dead. 2.

发表于:2019-01-11 / 阅读(120) / 评论(0) 分类 美联社新闻一分钟2009年(一)月

美联社新闻一分钟 AP 2016-6-08

This is AP news minute. 1. A top official at UCLA says he is disturbed that doors couldn't be locked when students were trying to take shelter during an on-campus shooting. The shooter and a mechanical engineering professor were found dead on Wednesd

发表于:2019-01-11 / 阅读(140) / 评论(0) 分类 美联社新闻一分钟2016(六)月

美联社新闻一分钟 AP 2015-4-2

Tens of thousands marched inTunis to denounce extremist violence following the attack on the National BardoMuseum. Demonstrators lined the capital city chanting, marching by the site ofthe deadly shooting. 22 died, mostly tourists. Leaders and dignit

发表于:2019-01-11 / 阅读(132) / 评论(0) 分类 美联社新闻一分钟2015(四)月

美联社新闻一分钟 AP 2015-3-5

1. Iraqi forces launched a large-scale military operation to capture the city of Tikrit from Islamic State militants. Shiite and Sunni fighters are taking part. 2. US Secretary of State John Kerry and Russian Foreign Minister Sergey Lavrov are meetin

发表于:2019-01-11 / 阅读(126) / 评论(0) 分类 美联社新闻一分钟2015(三)月

美联社新闻一分钟 AP 2014-08-21

1. Missouri Governor, Jay Nixon has lifted the curfew that has been placed in Ferguson, Missouri, for the past two nights. Thats after calling in the National Guard. Meanwhile, Attorneys for the family of Michael Brown said a private autopsy confirms

发表于:2019-01-11 / 阅读(102) / 评论(0) 分类 美联社新闻一分钟2014(八)月

【英语时差8,16】酒精测试的原理

How Do Breathalyzers Work? If a police officer sees you driving in a reckless manner, chances are youll be pulled over and asked to breathe into a special machine that measures your blood alcohol content. But how can your breath reflect how much alco

发表于:2019-01-22 / 阅读(84) / 评论(0) 分类 英语时差8，16

【英音模仿秀】暗度陈仓护手稿

❤ 模仿文本：But first, the story of the extraordinary undercover operation which saved hundreds of thousands of historic documents in the Malian city of Timbuktu. The documents date back to the 13th century and include countless beautiful work

发表于:2019-01-23 / 阅读(55) / 评论(0) 分类 英音模仿秀

HEALTH REPORT - SARS Virus No Longer Such a Mystery

HEALTH REPORT - SARS Virus No Longer Such a Mystery By Cynthia Kirk Broadcast: Wednesday, July 27, 2005 I'm Shep O'Neal with the VOA Special English Health Report. SARS is a viral disease There is pro

发表于:2019-01-30 / 阅读(199) / 评论(0) 分类 健康与经济

雅思阅读词汇：探索太空生命(4)

isolated adj. 孤立的 jurisprudence n. 法学 lander n. 登陆者 latitude n. 纬度 launch n.v.发射（导弹、火箭等） layperson n. 外行 lichen n. [植]青苔，地衣 locale n. 场所 LR=

发表于:2019-02-06 / 阅读(111) / 评论(0) 分类 英文语法词汇

美联社新闻一分钟 AP 2016-8-15

This is AP news minute. 1. Islamic State militants claimed a Canadian man who died while allegedly planning the terror attack is one of their soldiers. Aaron Driver died Wednesday, southwest of Toronto when he detonated an explosive device inside a t

发表于:2019-02-11 / 阅读(138) / 评论(0) 分类 美联社新闻一分钟2016(八)月

【英语时差8,16】防臭袜子-下

There are several kinds of odor preventing and odor destroying treatments for textiles. For the most part, they work by killing or inhibiting the bacteria and fungi that cause odors. For example, these socks contain Quaternary Ammonium Compounds, or

发表于:2019-02-23 / 阅读(59) / 评论(0) 分类 英语时差8，16

【英语时差8,16】虫子是如何浮在水面的？-上

Its summertime, and youre on vacation. You sit beside a quiet pond, fishing, trying to relax, trying to think about nothing at all. You watch the leaves stirring, the water rippling in the sunshine, and the water bugs standing on the surface of the w

发表于:2019-02-23 / 阅读(105) / 评论(0) 分类 英语时差8，16

【英音模仿秀】印度铁娘子——人杰鬼雄

模仿文本： It's October, 1984, and India's Prime Minister Indira Gandhi is facing some of the worst political turmoil of her career. Long-running conflicts between Sikhs and Hindus have come to a head over the summer after Mrs Gandhi sent in the

发表于:2019-02-23 / 阅读(67) / 评论(0) 分类 英音模仿秀
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