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(bào)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.
 

 

曲阜市| 昭平县| 子长县| 鲁甸县| 钦州市| 洪泽县| 孟连| 桐柏县| 五常市| 宜良县| 辉县市| 凤山市| 乐昌市| 平泉县| 潜江市| 财经| 青岛市| 巴楚县| 奉贤区| 乌兰县| 安达市| 白玉县| 游戏| 鄄城县| 沾益县| 灵寿县| 清流县| 彭山县| 正宁县| 正镶白旗| 紫金县| 略阳县| 台北市| 阜新市| 高淳县| 章丘市| 沅江市| 华蓥市| 哈密市| 肃南| 浑源县|