[化] 酸式硝基型; 亚酸式硝基型

快乐英语第三册 UNIT4-6

00:00.00]Lesson 4 1.Learn to say [00:05.69]Mom,this Henry,my new friend. [00:11.05]Welcome to our home! Nice to meet you. [00:16.69]2.Listen,Read and Write [00:25.05]C c cat clock D d: dog deer CD [00:45.92]2.Let's act [00:52.98]Dad,Mom,this is Henry

发表于:2018-12-13 / 阅读(161) / 评论(0)

快乐英语第三册

Will和Would有什么区别？

首先让我们来看一道题： The sky is very dark now. I'm afraid it ( ) A. will rain B. is going to rain C. is about raining D. it would rain 答案是B，这个可能没有问题。但是在我们学习的过程中，不能仅仅满足于一个正

发表于:2018-12-18 / 阅读(123) / 评论(0)

英文语法词汇

英文笑话：The Plural Form of "Child" “孩子”的复数形式

Teacher: What is the plural of Man, Tom? Tom: Men. Teacher: Good. And the plural of child? Tom: Twins. 老师：汤姆，男人这个词的复数形式是什么？汤姆：男人们。老师：答得好。那孩子的复数形式呢？汤姆：双胞胎。

发表于:2019-01-02 / 阅读(100) / 评论(0)

英文笑话

礼貌的形成 The Form of Manner

礼貌的形成 The Form of Manner When we talk to other people, we will be pleased to chat with them if they are nice to us. On the contrary, if the person is rude and impolite, we will not want to listen to them. Manner matters so much in the commu

发表于:2019-01-03 / 阅读(143) / 评论(0)

英语作文

麻省理工学院公开课：单变量微积分03：求导四则运算及三角函数导数

分集介绍：导数，商数，正弦和余弦 Derivatives.of.products.quotients.sine.cosine

发表于:2019-01-05 / 阅读(383) / 评论(0)

麻省理工学院公开课：单变量微积分

麻省理工学院公开课：单变量微积分01：导数和变化率

分集介绍：导数，斜率，速度与变化率 Derivatives.slope.velocity.rate.of.change

发表于:2019-01-05 / 阅读(380) / 评论(0)

麻省理工学院公开课：单变量微积分

英语游戏:愚蠢的香肠

[全屏观看] 点击右键- 另存为可保存这个Flash影片 Silly Sausage是Nitrome于2011年5月28日发行的一款益智类游戏，它是以香肠在尽量不碰到其它损失生命物体的情况下吃光所有的钻石再到达终点为标

发表于:2019-01-08 / 阅读(234) / 评论(0)

英语对接游戏

北师大版高中英语模块7--Unit 20 workshop4

[00:02.27]The most recent probe to be sent [00:04.29]was the Mars Odyssey launched in April 2001, [00:07.98]which is due to orbit the planet [00:09.52]and provide communications [00:10.96]for future explorations. [00:13.62]Another period of great int

发表于:2019-01-10 / 阅读(322) / 评论(0)

北师大版高中英语模块7(选修)

英文特辑精选：《Form》—Devics

Form - Devics form and you like what you are but they don't so you form with the hope to be the best you can be in a world with nothing it's all lies and so am i and no one listens form now your awake and the nightmare goes on time it's the gun that

发表于:2019-01-10 / 阅读(127) / 评论(0)

英文特辑精选

英文摇滚歌曲：Scar Symmetry - Deviate From The Form

I transcend my earthly form Through some questions never asked before Question the need to be a machine That responds automatically Some words will trigger certain acts Just one of the commandments we have learnt Some acts will trigger certain states

发表于:2019-01-10 / 阅读(100) / 评论(0)

英文摇滚歌曲

VOA慢速英语2012 Economics Report - Greece Struggles to Form Government, Unsure about Reform

Economics Report - Greece Struggles to Form Government, Unsure about Reform This is the VOA Special English Economics Report. The Olympic flame was lit in Greece Thursday. The ceremony marked the beginning of a long trip through Greece and Britain, w

发表于:2019-01-12 / 阅读(130) / 评论(0)

2012年VOA慢速英语(六)月

VOA慢速英语2012--Economics Report - Greece Struggles to Form Government, Unsure about Reform

Economics Report - Greece Struggles to Form Government, Unsure about Reform 经济报道 - 希腊进入第三轮组阁尝试改革前途未卜 This is the VOA Special English Economics Report. 这里是美国之音慢速英语经济报道。 The Oly

发表于:2019-01-12 / 阅读(148) / 评论(0)

2012年VOA慢速英语(五)月

VOA标准英语2009年-Lebanon's Hariri Makes 2nd Attempt at Form

By Jessica Desvarieux Cairo 24 September 2009 Lebanon's Prime Minister-designate Saad Hariri on Thursday launched talks with the country's various political parties in his second bid to form a coalition government since a June election. Lebanese pri

发表于:2019-01-13 / 阅读(101) / 评论(0)

VOA标准英语2009年(九月)

VOA标准英语2009年-Netanyahu Likely to Form New Israeli Coalition

Israeli election officials are continuing to tallying votes Thursday before announcing the final results of parliamentary elections. It appears more likely that Likud party leader Benjamin Netanyahu will form the next Israeli government. Israel's Li

发表于:2019-01-13 / 阅读(128) / 评论(0)

VOA标准英语2009年(二月)

VOA常速英语2007年-Acid Attacks Are a Growing Form of Revenge in U

By Birungi Machrine Kampala 26 November 2007 Attacks using acid are becoming more frequent in Uganda. Up to 2003, there were only 145 recorded attacks, but over the last three years, there have already been 87. Survivors often suffer from severe emot

发表于:2019-01-16 / 阅读(221) / 评论(0)

VOA常速英语2007年（十一月）

HEALTH REPORT - New Heart Drug Shows Promise in African Amer

HEALTH REPORT - New Heart Drug Shows Promise in African Americans By Cynthia Kirk Broadcast: Wednesday, November 17, 2004 This is Bob Doughty with the VOA Special English Health Report. Heart failure

发表于:2019-01-30 / 阅读(160) / 评论(0)

健康与经济

Low form keeps Beckham out of Olympic team

LONDON, July 2 (Xinhua) -- British sport sensation David Beckham was not given the chance to play for his home team in the upcoming London Olympic Games because of low form. British Olympic football coach Stuart Pearce Monday told reporters at a news

发表于:2019-02-08 / 阅读(167) / 评论(0)

英语新闻

Pato cautious about form after injury

RIO DE JANEIRO, Feb. 28 (Xinhua) -- Corinthians striker Alexandre Pato admits he is still a long way off rediscovering the form that made him one of the world's most sought-after strikers. The 23-year-old scored his third goal in seven matches for th

发表于:2019-02-09 / 阅读(168) / 评论(0)

英语新闻

听播客学英语 139 多丽丝·莱辛

Today we go on a journey. It starts in Sweden over 100 years ago; and then moves to London; and finally moves to future worlds and other planets. But we start in Sweden. Alfred Nobel spent his life finding ways to blow things up. He was born in 1833

发表于:2019-02-19 / 阅读(131) / 评论(0)

听播客学英语

CCTV9英语新闻：12,000-year-old artform championed by modern artist

Among Zambia's cultural treasures is rock art dating back 12,000 years. But authorities are failing to protect it from vandalism, theft, illegal rock quarrying, and even graffiti. One local artist, though, inspired by the artform, is doing what he ca

发表于:2019-03-12 / 阅读(209) / 评论(0)

cctv9英语新闻2016年

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