分集介绍:本视频主要讲了Huygen原理,光的衍射,单缝衍射,中央最大值等。

发表于:2018-12-09 / 阅读(69) / 评论(0) 分类 麻省理工学院公开课:振动与波

Lesson 15 1.Listen to the audio tape.Choose the correct answers. [00:09.40]1.A:Li Ming,it's time for supper. [00:15.46]B:I must do homework,I can't have supper. [00:20.53]2.A:Would you like to go to the cinema? [00:26.17]B:Yes! [00:29.05]3.A:What is

发表于:2018-12-13 / 阅读(216) / 评论(0) 分类 河北加拿大版初中英语活动手册

怀表与iPod双组合? PodKitWatch is a new pocket watch style case for the iPod nano that protects and beautifies a nano. You can quickly and easily install your nano into PodKitWatch without tools or assembly. You could wear it like a traditiona

发表于:2019-01-05 / 阅读(62) / 评论(0) 分类 英语万花筒

Let's go. 我们去吧。 Let me try. 让我试试。 Let's begin. 我们开始吧。 Let's play tennis. 我们打网球吧。 Let's play video games. 我们去玩视频游戏吧。 Let's take a walk. 我们去散步吧。 Let's listen to the music. 我

发表于:2019-01-08 / 阅读(64) / 评论(0) 分类 英语日常口语

A 20-minute video, filmed by a U.S. Allies representative, has made its debut in a museum in Hunan Province. Serving as an important testimony of the Chinese People's victory, the video footage demonstrates the signing of a surrender memorandum by th

发表于:2019-02-03 / 阅读(64) / 评论(0) 分类 英语新闻

Our given names influence our lives in all sorts of strange ways, affecting everything from where we choose to live to what we do for a living. That's the takeaway of a fascinating new video from PBS Digital Studios' BrainCraft series. 我们的名字会

发表于:2019-02-04 / 阅读(50) / 评论(0) 分类 阅读空间

Mobile devices have changed the way how films and television programs are created and presented in front of the audience, said Chris D. Nebe, CEO of Monarex Hollywood and director of Mysterious China at a sub forum in Wuzhen on Thursday. 周四,在中

发表于:2019-02-05 / 阅读(55) / 评论(0) 分类 英语新闻

自从有了网络,时间变得更加容易打发,日子也过得有些混沌。以下是上网时最容易浪费时间的六大罪魁祸首(culprit),看看你有没有中招。 一、Living a Fantasy Life 沉浸式游戏 While fantasy football

发表于:2019-02-07 / 阅读(47) / 评论(0) 分类 实用英语

A new social media trend is seeing kids ripping the stuffing out of their giant teddy bears and climbing inside of them. 孩子们扯出泰迪熊大玩偶里的填充物,爬进去跳舞,成了社交媒体上的新潮流。 Over the past week, vid

发表于:2019-02-07 / 阅读(91) / 评论(0) 分类 阅读空间

Perfect. Cutest video ever. Righteous, holla. Pandasingle. Icebearforpresident. 完美。史上最萌视频。标签:公正。标签:哈哈。标签:单身熊猫。标签:北极熊竞选总统。 It's public. All right. Step back. Let it brea

发表于:2019-02-08 / 阅读(65) / 评论(0) 分类 咱们裸熊

A public spat between two warring and wildly popular Chinese apps has had the feel of a teenage dance-off. 两个中国热门app之间的公开口水战有一种小朋友之间斗舞的感觉。 Sorry, Douyin Fans, ran an article from the short video

发表于:2019-02-16 / 阅读(89) / 评论(0) 分类 经济学人商业系列

Its main weapon was, and remains, state control of television, which repeats endlessly the risible claim that Venezuela is a victim of an economic war. 在查韦斯时代,他们主要的宣传武器是电视,现在仍是电视,即由国家控制电

发表于:2019-02-17 / 阅读(74) / 评论(0) 分类 经济学人综合

HARI SREENIVASAN, PBS NEWSHOUR WEEKEND ANCHOR: After days of negotiations for a prisoner exchange apparently broke down, ISIS today reportedly executed a Japanese journalist it had been holding hostage in Syria. Just last weekend, ISIS also beheaded

发表于:2019-02-17 / 阅读(78) / 评论(0) 分类 PBS访谈社会系列

Chinese President Xi Jinping has highlighted the role of reform in China's economic adjustment, aiming for safer and higher-quality growth. The president made the remarks during an inspection tour in Zhejiang province, where he was party chief from 2

发表于:2019-02-18 / 阅读(139) / 评论(0) 分类 cctv9英语新闻2015年

China's Consulate-General in Canada's Calgary has confirmed that no Chinese have been wounded or killed in the raging wildfire in west Canada. Consulate-general Wang Xinping says about 100 Chinese nationals have been evacuated from nearby areas. Wang

发表于:2019-02-18 / 阅读(130) / 评论(0) 分类 cctv9英语新闻2016年

从日常生活中学来的语言才是最生动鲜活的。混迹国外多年的网友给我们整理了一些外国人常用的但国内教科书上难见到的地道英语表达,快来看看吧。 1. I'm good I'm good除了可以用来回答How

发表于:2019-02-19 / 阅读(79) / 评论(0) 分类 英语口语

从日常生活中学来的语言才是最生动鲜活的。混迹国外多年的网友给我们整理了一些外国人常用的但国内教科书上难见到的地道英语表达,快来看看吧。 1. I'm good I'm good除了可以用来回答How

发表于:2019-02-20 / 阅读(56) / 评论(0) 分类 实用英语

James Surowiecki一直见血的指出了社会媒体与其他新闻报道媒体发挥同等作用的时候:2005年的海啸时,youtube视频,博客,即时信息和短信传播了新闻,也保存了这场悲剧中感人的个人故事。

发表于:2019-02-21 / 阅读(61) / 评论(0) 分类 TED演讲视频集

Here is a look at how China has performed at the most recent Olympics. China were second in the standings in London with 88 medals overall including 38 golds. That left them eight golds behind the United States, but leading hosts Great Britain by nin

发表于:2019-03-12 / 阅读(181) / 评论(0) 分类 cctv9英语新闻2016年

Chinas investment in information infrastructure over the next five years is expected to exceed 2 trillion yuan as outlined in the 13th Five-Year Plan. China's nationwide fiber optic network, high-speed broadband Internet and cloud computing centers w

发表于:2019-03-12 / 阅读(1680) / 评论(0) 分类 cctv9英语新闻2016年