国产热热热精品,亚洲视频久久】日韩,三级婷婷在线久久,99人妻精品视频,精品九热人人肉肉在线,AV东京热一区二区,91po在线视频观看,久久激情宗合,青青草黄色手机视频

 
  | Home | News| Living in China| MMS | SMS | About us | Contact us|
   
 Language Tips > 2001
think tank
what does it mean?
a committee of people experienced in a particular subject, established by an organization, government, etc., to develop ideas and advise on matters related to that subject
how do we use it?
linda's mom works for a think tank that studies how to encourage recycling in communities.
word quiz
you won't need a think tank to take a guess at this question. what were people likely to be thinking about when "think tank" was first used?

a. the first programs sending spacecraft into orbit
b. the potential of a new invention called the telephone
c. the first successful use of a vaccine against disease
d. the new access to knowledge due to invention of the printing press
key
[a]
think "a" and you've thought right! in the mid-1900s, there were many new developments in society and science, and therefore much for think tanks to do. the word "think tank" itself first appeared in the late 1950s. some other words first used around the same time show that our understanding and exploration of space was increasing, for example. our earliest evidence of "moondust," which refers to the fine dry particles of the moon's soil, is from the late 1950s, as is our evidence of "splashdown," which refers to the landing of a spacecraft in the ocean.
 
Go to Other Sections
Story Tools
 
Copyright by chinadaily.com.cn. All rights reserved

版權(quán)聲明:未經(jīng)中國日報網(wǎng)站許可,任何人不得復(fù)制本欄目內(nèi)容。如需轉(zhuǎn)載請與本網(wǎng)站聯(lián)系。
None of this material may be used for any commercial or public use. Reproduction in whole or in part without permission is prohibited.
 

 

仁化县| 阿拉善右旗| 桂平市| 云南省| 息烽县| 老河口市| 泰安市| 通化县| 游戏| 盐边县| 涪陵区| 海宁市| 岳普湖县| 宝坻区| 雷波县| 新沂市| 旬阳县| 威海市| 甘德县| 汕尾市| 牡丹江市| 天水市| 邵阳市| 朔州市| 沐川县| 河间市| 涟源市| 石景山区| 漯河市| 五家渠市| 灯塔市| 郸城县| 丘北县| 房山区| 诸暨市| 崇阳县| 景泰县| 五寨县| 东平县| 永顺县| 永德县|