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数学英语 23 What are the Range and Standard Deviation?

by Jason Marshall Weve now talked about three methods for calculating average values: the mean, median, and mode (affectionately known as the three Ms). So, are we done? Is that everything we could ever want to know about interpreting average values?

发表于:2018-12-07 / 阅读(233) / 评论(0)

数学英语

地道英语在线听-Ballistic 狂怒

It looks like he's going ballistic. John: Hello, welcome to Real English from BBC Learning English. Im John. Helen: 大家好，我是 Helen. John: Today, we're going to look at words and phrases that you might not find in your dictionary. Helen: 地道英语

发表于:2019-01-02 / 阅读(196) / 评论(0)

地道英语在线听

VOA常速英语2017--美国呼吁安理会制裁伊朗

The UN Secretary General recently released his biannual report on implementation of UN Security Council Resolution 2231. In it, he confirmed that all parties, including Iran, are living up to their commitments under the Joint Comprehensive Plan of Ac

发表于:2019-01-03 / 阅读(259) / 评论(0)

VOA标准英语2017年(7月)

VOA常速英语2017--美国制裁伊朗25个组织和个人

Following recent provocative actions by the Iranian government, the United States Treasury Department has sanctioned individuals and entities involved in Iran's support for terrorism and ballistic missile development. These sanctions are in keeping w

发表于:2019-01-03 / 阅读(256) / 评论(0)

VOA标准英语2017年(二月)

想聊就聊-5.04.14高兴

Perfect ,it couldn't be better. You made a good choice then? It is just what I want. No regrets? I'm really pleased of that. I'm glad you are happy. It is super.

发表于:2019-01-06 / 阅读(225) / 评论(0)

想聊就聊

SSS 2011-10-05

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? The 2011 Nobel Prize in chemistry goes to Daniel Schechtman of the TechnionIsrael Institute of Technology in Haifa. Schechtman discovered what are called quasicrystals.

发表于:2019-01-08 / 阅读(332) / 评论(0)

Scientific American(十)月

2006年VOA标准英语-Does North Korea's Taepodong-2 Ballistic Missil

By Andre de Nesnera Washington 06 July 2006 Just a few days ago, North Korea triggered an international furor when it conducted several ballistic missile tests. In this report from Washington, VOA Senior Correspondent Andr de Nesnera looks at whethe

发表于:2019-01-11 / 阅读(282) / 评论(0)

2006年VOA标准英语（七月）

伊朗称发射导弹并不违反核协议

AS IT IS 2016-03-26 Iran Says Missile Launch Was Not Violation 伊朗称发射导弹并不违反核协议

发表于:2019-01-12 / 阅读(380) / 评论(0)

2016年VOA慢速英语(三)月

VOA慢速英语--伊朗无视美国制裁进行导弹测试

AS IT IS 2016-03-09 Iran Defies US With Test Missiles 伊朗无视美国制裁进行导弹测试 Iran said Tuesday it conducted ballistic missile tests to defy U.S. sanctions and to show its deterrent power and ability to confront any threats. The te

发表于:2019-01-12 / 阅读(306) / 评论(0)

2016年VOA慢速英语(三)月

联合国安理会将就伊朗导弹试射召开会议

The United Nations Security Council is to hold urgent talks Tuesday in response to a ballistic missile test carried out by Iran. 联合国安理会将于星期二举行紧急会谈，对伊朗进行的弹道导弹试验作出反应。 The United Stat

发表于:2019-02-04 / 阅读(175) / 评论(0)

英语新闻

抗战阅兵：海量先进武器首秀

Military fans in China and around the world should set their alarm clocks to ring before 10 am on Thursday Beijing time as they will be presented with a rare display of the People's Liberation Army's top weapons, observers suggested. 抗战胜利阅兵

发表于:2019-02-06 / 阅读(261) / 评论(0)

阅读空间

北约敦促朝鲜放弃核武器

北约敦促朝鲜放弃核武器 BRUSSELS, April 23 (Xinhua) -- Foreign ministers from the 28 NATO countries on Tuesday urged the Democratic People's Republic of Korea (DPRK) to abandon all nuclear weapons and existing nuclear and ballistic missile

发表于:2019-02-07 / 阅读(185) / 评论(0)

英语新闻

流行美語第216課

李华和Larry今天要和在他们的朋友Jenny一起去钓鱼。李华会学到两个常用语：go ballistic和get a move on。 LH: Jenny怎么这么还不来啊。我们已经等了20分钟了。看见她我非和她算账不可。 LL: Hey, ca

发表于:2019-02-12 / 阅读(152) / 评论(0)

美国之音《流行美语》

普京誓言加强军队应对美国与北约

Russian President Vladimir Putin has vowed to strengthen Moscow's nuclear and conventional weapons to counter recent moves by the US and NATO. The comment comes as the Russian Navy launched a Bulava ballistic missile from a nuclear-powered submarine

发表于:2019-02-13 / 阅读(168) / 评论(0)

英语新闻

历史上的今天-Today in History 2013-12-17

December 17th, 1903Near Kitty Hawk, North Carolina, Wilbur and Orville Wright conduct the first successful manned, powered flight of the airplane. The brothers achieved the pioneering feet with their experimental craft dubbed the Wright Flyer. 1957Th

发表于:2019-02-14 / 阅读(170) / 评论(0)

历史上的今天-2013年

美国：导弹防御试验失败

WASHINGTON, July 5 (Xinhua) -- The U.S. Department of Defense on Friday announced that the nation's missile defense system failed in a latest test with a ground-based interceptor missile failing to hit an incoming ballistic missile over the Pacific.

发表于:2019-02-17 / 阅读(201) / 评论(0)

英语新闻

美国官员:朝鲜已经发射弹道导弹入海

North Korea has fired a ballistic missile into the sea, South Korean and US officials say. They say the missile, launched off the east coast, flew about 800km (500 miles) and fell into the water. North Korea has not commented on the report. 近日，据

发表于:2019-02-18 / 阅读(170) / 评论(0)

英语新闻

伊朗“成功”试射弹道导弹

伊朗成功试射弹道导弹 TEHRAN, Feb. 10 (Xinhua) -- Iran has successfully test-fired two missile, one of them a surface-to-surface long-range ballistic missile, official IRNA news agency reported on Monday. The test-fired ballistic missile was

发表于:2019-02-18 / 阅读(231) / 评论(0)

英语新闻

CCTV9英语新闻：DPRK fires medium-range ballistic missile into sea

The Democratic Peoples Republic of Korea has fired a medium-range ballistic missile into east waters. This move is just days after the DRPK leader Kim Jong-Un ordered further nuclear warhead and missile tests. South Koreas defence ministry spokesman

发表于:2019-03-12 / 阅读(308) / 评论(0)

cctv9英语新闻2016年

CCTV9英语新闻：DPRK fires ballistic missile into sea

The missile launch comes a day after US President Barack Obama signed an order to implement new sanctions on the DPRK. It includes measures from the recently-agreed UN Security Council resolution, and separate moves passed by Congress. Let's cross li

发表于:2019-03-12 / 阅读(254) / 评论(0)

cctv9英语新闻2016年

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