二元函数
双参函数

TED演讲：互联网可能会崩溃,怎么办?(5)

Now, in fact, they couldn't do it for a lot of reasons today. 现在，事实上，由于一些原因，他们不能做到这一点。 One of the reasons is a lot of their telephones use IP protocol and use things like Skype and so on that go through

发表于:2018-12-13 / 阅读(295) / 评论(0)

TED演讲教育篇

step by step 第三册 lesson 105

UNIT 53 COMMUNICATION( Ⅰ ) Lesson 105 Part Ⅰ UNIT 53 COMMUNICATION( Ⅰ ) Lesson 105 Part Ⅰ Warming-up Exercises Numbers: Circulation of Some of the Major British and American Newspapers Newspap

发表于:2018-12-27 / 阅读(379) / 评论(0)

英语听力入门 (全四册)

经济学人:天文学:新星诞生(2)

Dr Molnar s interest was piqued at a conference in 2013, Molnar博士的兴趣源于2013年的一次会议， when Karen Kinemuchi, another astronomer, presented some puzzling findings on a particular star seen by Kepler, a space telescope designed c

发表于:2018-12-30 / 阅读(353) / 评论(0)

经济学人科技系列

双语有声阅读:What Is Money and What Are Its Functions? 金

What Is Money and What Are Its Functions? Money is something you've been familiar with throughout your life. In fact, you may already consider yourself an expert on the subject. You regularly use money to measure the value of things you own. You also

发表于:2019-01-02 / 阅读(311) / 评论(0)

双语有声阅读

SSS 2008-07-21

This is Scientific Americans 60-Second Science, Im Cynthia Graber. This will just take a minute. You may have heard of genetic research being done in Iceland. Its a rich venue, because Icelanders have a limited gene pool and highly detailed genealogi

发表于:2019-01-08 / 阅读(382) / 评论(0)

Scientific American(七)月

GRE优秀作文赏析：科学的作用

题目： The function of science is to reassure; the purpose of art is to upset. Therein lies the value of each. 科学的作用是解惑;艺术的目的是创新。只有这样他们才各得其所。正文： Science and art are two of the most g

发表于:2019-01-08 / 阅读(299) / 评论(0)

GRE作文

UNIT 5 Family and Home Lesson 33: Li Ming's Family

[ti:UNIT 5 Family and Home Lesson 33: Li Ming's Family] [00:01.72]UNIT 5 第五单元 [00:03.69]Lessons 33～40 第33～40课 [00:07.17]Family and Home 家庭和家 [00:10.24]Lesson 33: 第33课： [00:12.07]Li Ming's Family 李明的家庭 [00:15.05

发表于:2019-01-09 / 阅读(540) / 评论(0)

河北教育初中英语（初中起点）七年级上

商务口语：商务会议实战演练－1

Len Matheson is the owner of a small company thats rapidly expanding. Hes getting advice from Mary Carlyle, a business consultant, on developing a functional organizational structure to better deal with his companys expansion. Mary: Mr. Matheson, Ive

发表于:2019-01-21 / 阅读(323) / 评论(0)

天天商务口语

英语口语流行话题第14期:不能没有你 07-2

A: Hey! Do you have a plan or tomorrow? A: 嘿，你明天有安排吗? B: Not yet. Why? Do you have some good ideas? B: 暂时没呢，怎么了?你有什么好想法吗? A: Well, let 's go out shopping. I want to buy a new cell phone. I can see whe

发表于:2019-01-22 / 阅读(262) / 评论(0)

英语脱口秀之流行时尚

如何判断一段感情是否真心

Figuring out whether the man or woman you're with is the ever-elusive 'one' is no mean feat. 想要了解自己的另一半并非易事。 But, if a new checklist is to be believed, it's rather simple to work out. 但如果有份检查表作参考则会

发表于:2019-01-30 / 阅读(277) / 评论(0)

阅读空间

向商务顾问请教公司结构

发表于:2019-02-02 / 阅读(301) / 评论(0)

天天商务口语

China to dismantle Railway Ministry

BEIJING, March 10 (Xinhua) -- China plans to dismantle the Ministry of Railways into administrative and commercial arms to reduce bureaucracy and improve railway service efficiency, a top Chinese official said Sunday. The existing Railways Ministry,

发表于:2019-02-03 / 阅读(373) / 评论(0)

英语新闻

毕业文凭公证书英文版

公证书 Certificate (90)Lu Zi, No. 1130 This is to certificate that Mr. Zhao Qiangwen holds a diploma issued to him in July, 1980 by Shandong University (Diploma No. 064)and that we have carefully checked the seal of the University and the signatur

发表于:2019-02-04 / 阅读(348) / 评论(0)

求职英语

商业书信的十点注意事项

1．切忌主客不分或模糊。例子： Deciding to rescind the earlier estimate， our report was updated to include $40，000 for new equipment．应改为 Deciding to rescind our earlier estimate， we have updated our report to include $40，

发表于:2019-02-06 / 阅读(327) / 评论(0)

英语作文

GRE写作范文：科学的作用

GRE优秀作文：科学的作用。GRE频道小编为同学们整理了GRE优秀作文：科学的作用，供同学们参考使用，希望对同学们的gre 考试有所帮助，下面和小编一起来看看吧：题目： The function of scienc

发表于:2019-02-09 / 阅读(386) / 评论(0)

GRE作文

第101期:人生目标在于不断进步

今天我们分享的是世界足球先生梅西的名言。 My goal is to constantly be improving. Year after year you can grow as a player, just as in life. You can always learn something new. And sometimes in the moment you can reveal something in

发表于:2019-02-12 / 阅读(312) / 评论(0)

卡卡课堂早餐英语

CCTV9英语新闻：Premier Li Keqiang attends teleconference on gov't functions

Chinese Premier Li Keqiang said the Chinese government will double efforts to streamline administration, transform functions and boost efficiency. The aim is to spur economic vitality and attract overseas investment. He made the remarks at a national

发表于:2019-02-13 / 阅读(345) / 评论(0)

cctv9英语新闻2016年

Lesson 67-1 In the Pharmacy 在药店

Listen to the dialogues people talking with the pharmacist. Then, check themes they talked about. 英语对话1 A:We have two kinds of aspirin for headache,AspiZine and Ai-Samin. B:What are the differences? A:The AspiZine is made in USA. The 'Ai-Sami

发表于:2019-02-17 / 阅读(388) / 评论(0)

英语听力练习题

囧调查四成人不在意手机能否接电话

Making a call is now only the sixth most common use for a mobile phone, a study has found. 一项研究发现，在智能手机的常用功能中，打电话只能位居第六。 Sending and receiving text messages, reading emails, browsing the inter

发表于:2019-02-25 / 阅读(282) / 评论(0)

英语新闻

音乐咖啡厅:Jessie Ware - Pieces

A reason to live, reason to love You gave me them both and more yet, A reason to fall, and a reason to hide Suddenly all I'm left with... I was so sure this was real, but Now I'm sure of nothing at all [Chorus:] I had to shatter to pieces You made me

发表于:2019-03-11 / 阅读(389) / 评论(0)

音乐咖啡厅

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