首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
What Is the Coolest Gas in the Universe? What is the coldest air temperature ever recorded on the Earth? Where was this low
What Is the Coolest Gas in the Universe? What is the coldest air temperature ever recorded on the Earth? Where was this low
admin
2011-04-14
56
问题
What Is the Coolest Gas in the Universe?
What is the coldest air temperature ever recorded on the Earth? Where was this low temperature recorded? The coldest recorded temperature on Earth was - 91 °C, which ______【51】in Antarctica(MWM) in 1983.
We encounter an interesting situation when we discuss temperatures in______【52】.
Temperatures in Earth orbit actually range from about + 120°Cto - 120°C. The temperature depends upon______ 【53】you are in direct sunlight or shade. Obviously, - 120°C is colder than our body can______【54】 endure. Thank NASA science for well, de-signed space suits that protect astronauts from these temperature extremes.
The space temperatures just discussed affect only our areal of the solar______【55】. Obviously, it is hotter closer to the Sun and colder as we travel______【56】from the Sun. Astronomers estimate temperatures at Pluto are about -210°C. How cold is the lowest estimated temperature in the entire universe? Again, it depends upon your ______【57】 . We are taught it is supposedly______【58】to have a temperature below absolute zero, which is -273°C,at which atoms do not move. Two scientists, whose names are Cornell and Wieman, have successfully______【59】 down a gas to a temperature barely above absolute zero. They won a Nobel Prize in Physics in 2001 for their work, not a discovery, in this case.
Why is the two scientists’ work so important to science?
In the 1920s,Satyendra Nath Bose was studying an interesting______【60】 about special light particles we now call photons(光子) . Bose had trouble______【61】 other scientists to believe his theory, so he contacted Albert Einstein. Einstein’s calculations helped him theorize that atoms______【62】 behave as Bose thought—but only at very cold temperatures.
Scientists have also discovered that ultra -cold(超冷) atoms can help them make the world’s atomic clocks even______【63】 accurate. These clocks are so accurate today they would only lose one second______【64】 six million years! Such accuracy will help us travel in space because distance is velocity times time4(d =v xt). With the long distances involved in space______【65】, we need to know time as accurately as possible to get accurate distance.
选项
A、operated
B、occurred
C、opened
D、offered
答案
B
解析
本题有一定难度,考查词义辨析,但干扰项干扰不大。可以先看选项得到信息提示。文章此处是说“……发生在1983年的南极洲”,显然,答案是B。
转载请注明原文地址:https://kaotiyun.com/show/81Qd777K
本试题收录于:
职称英语理工类C级题库职称英语分类
0
职称英语理工类C级
职称英语
相关试题推荐
Theresearchshouldproveinvaluableinthestudyoflinguistics.
DangersAwaitBabieswithAltitudeWomenwholiveintheworld’shighestcommunitiestendtogivebirthtounderweightbabie
Ihavebeentryingtoquitsmoking.
HappyTherapy(诊疗)NormanCousinswasabusinessmanfromtheUnitedStateswhooftentraveledaroundtheworldonbusiness.
Shebrokeavesselinangeratamanwhocamesellingthingsatherdoor.
LifeintheUniverseManyscientiststodayareconvincedthatlifeexistselsewhereintheuniverse-lifeprobablymuchlike
Britishteenagersaredamagingtheirhealthbynotgettingenoughsleepbecausetheyaredistractedbyelectronicgadgetsinthe
Timeisveryimportantinourlives.Itorganizesoureverydaymoments.However,timeneverhadanyimportanceinmylifeuntil
NewFoodsandtheNewWorldInthelast500years,nothingaboutpeople—nottheirclothes,ideas,orlanguages—haschangeda
America’semphasisontheimportanceofeducationforeveryonehasspurredscientificresearch.
随机试题
Themindcannotbemadeup(一成不变).
A、Shedoesn’thavetimetoread.B、Shehasnoreadingpreferences.C、Shedoesn’treadthesamekindofbooksasthewoman.D、She
溶血性黄痘的特征不包括
研和法制备油脂性软膏剂时,如药物是水溶性的,宜先用少量水溶解,再用某种物质吸收后与基质混合,该物质是
关于铁的吸收的叙述,错误的是
骨折局部典型移位侧面观是
某城市城区面积40km2,人口为110万,应设邮政局、所的数量为()。
现代公共行政的首要目标是公平丑:义。()
简述共有的特征。
1.用IE浏览器打开如下地址:HTTP://LOCALHOST:6553l/ExamWeb//Index.htm,浏览有关“Linux下的主要的C语言编译器”的网页,将该贞内容以文本文件的格式保存到考生目录下,文件名为“TestIe.txt”。2.用
最新回复
(
0
)