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
23
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 interesting
B impossible
C reasonable
D necessary
答案
B
解析
从意思上来考虑,选项A的意思是“有趣的”;选项B的意思是“不可能的”;选项 C的意思是“合理的”;选项D的意思是“必要的”。文章要表达“我们被告知绝对零度 之下原子是无法运动的,所以不可能存在比绝对零度更低的温度”。从意思上考虑应为 “不可能的”,答案为B。
转载请注明原文地址:https://ti.zuoweng.com/ti/gV9QKKKQ
相关试题推荐
WhatIstheCoolestGasintheUniverse? Whatisthecoldestairtemperature...
WhatIstheCoolestGasintheUniverse? Whatisthecoldestairtemperature...
WhatIstheCoolestGasintheUniverse? Whatisthecoldestairtemperature...
WhatIstheCoolestGasintheUniverse? Whatisthecoldestairtemperature...
WhatIstheCoolestGasintheUniverse? Whatisthecoldestairtemperature...
WhatIstheCoolestGasintheUniverse? Whatisthecoldestairtemperature...
DarkForcesDominateUniverse Theearth,moon,sunandallvisiblestarsin...
DarkForcesDominateUniverse Theearth,moon,sunandallvisiblestarsin...
DarkForcesDominateUniverse Theearth,moon,sunandallvisiblestarsin...
DarkForcesDominateUniverse Theearth,moon,sunandallvisiblestarsin...
随机试题
控制保险责任包括控制逆选择,逆选择是指( )。 A、保险人愿意承保高风险的保
女性患者,16岁,病史:面部疖肿挤压后出现发热、视物双影。查体: 右侧球结膜水
纸上写有若干个整数,它们的平均数为56,小明将其中的每个奇数乘以2,每个偶数乘以
喷射式熔断器更换时,先拉中间相,后拉边相(如有风时先拉背风的边相,后拉迎风的边相
患者,女,20岁,因低热,轻咳少痰,多次痰结核分枝杆菌涂片阴性,其经典的治疗方案
我国法定的公布性文件包括( )。
若蜜浓稠不能与药物拌匀时,可以
开口于上鼻道的鼻旁窦是()A.额窦B.上颌窦C.筛窦的前中群(或前、中筛窦)D.筛窦后群(或后筛窦)
流行性脑脊髓膜炎患者最典型的皮肤粘膜体征是A.斑点,瘀斑B.色素沉着C.白斑D.发绀E.黄疸
地下工程防水混凝土应连续浇筑,宜少留施工缝,当需要留设施工缝时其留置位置正确的有()。A.墙体水平施工工缝应留在底板与侧墙的交接处B.墙体有预留孔洞时,施工