首页
财务会计
医药卫生
金融经济
考公考编
外语考试
学历提升
职称考试
建筑工程
IT考试
其他
登录
职称考试
What Is the Coolest Gas in the Universe? What is the coldest air temperature...
What Is the Coolest Gas in the Universe? What is the coldest air temperature...
admin
2020-12-24
43
问题
What Is the Coolest Gas in the Universe?
What is the coldest air temperature ever recorded on Earth? Where was this low temperature recorded? The coldest recorded temperature on Earth was - 911), which (51) in Antarctica (南极洲)in 1983.
We encounter an interesting situation when we discuss temperatures in_(52)_ Temperatures in Earth orbit (轨道)actually range from about +120 to -1201).The temperature depends upon __ (53) you are in direct sunlight or in shade.Obviously,-1201) is colder than our body can (54) endure.
The space temperatures just discussed affect only our area of the solar __(55). Obviously, it is hotter closer to the Sun and colder as we travel (56) from the Sun. Scientists estimate temperatures at Pluto are about 一210t). 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 atemperature below absolute zero, which is at which atoms do not move. Two scientists, 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 一 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 (微粒)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 Bosethought 一 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 accuratetoday they would only lose one second_(64) six million years! Such accuracy will help us travel in space because distance is velocity (速度)times time (of= w). With the long distances involved in space (65),we need to know time as accurately as possible to get accurate distance.
选项
A will
B would
C must
D need
答案
B
解析
根摒上下文判断可以排除选项C和D。will可用来表示“在一定的情况下通常 会……”,又因为本句主句的时态为一般过去式,所以从句中的助动词使用过去式would。 本题答案为B。
转载请注明原文地址:https://ti.zuoweng.com/ti/DV9QKKKQ
相关试题推荐
Thestudyshowsthatjoyisnotuniquetohumanbeings.A:universe B:specialC:s
WhatIstheCoolestGasintheUniverse? Whatisthecoldestairtemperature...
WhatIstheCoolestGasintheUniverse? Whatisthecoldestairtemperature...
WhatIstheCoolestGasintheUniverse? Whatisthecoldestairtemperature...
WhatIstheCoolestGasintheUniverse? Whatisthecoldestairtemperature...
WhatIstheCoolestGasintheUniverse? Whatisthecoldestairtemperature...
WhatIstheCoolestGasintheUniverse? Whatisthecoldestairtemperature...
DarkForcesDominateUniverse Theearth,moon,sunandallvisiblestarsin...
DarkForcesDominateUniverse Theearth,moon,sunandallvisiblestarsin...
DarkForcesDominateUniverse Theearth,moon,sunandallvisiblestarsin...
随机试题
当超声波通过弹性介质时,其声能量损失称为 A.反射 B.衰减 C.吸收
在结构主义盛行的文化背景下,在功利取向为主导的市场经济中,人们缺乏理性向道德妥
慢性肾炎主要病变部位是
.从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性:
行政救济的内容不包括()。 A.行政复议程序B.行政处罚程序 C.行政监督
35岁女性,双胎妊娠,胎膜早破,规律宫缩15小时。子宫颈口开大2cm,行剖宫产
信托的构成要素有()。A.信托当事人B.信托目的C.信托关系D.信托财产E.信托行为
患者鼻唇沟变浅、颌部前突的原因是A.垂直距离恢复过大B.垂直距离恢复过小C.水平颌位关系记录错误D.下颌前伸E.下颌后缩
肾气不固证临床可见A.小便频数清长B.女子经闭C.男子滑精D.下利脓血E.小便失禁
流动比率的计算公式为()。A、流动资产/流动负债B、流动负债/流动资产C、流动资产/长期负债D、流动资产/固定资产