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
下面的短文有15处空白,请根据短文内容为每处空白确定1 个最佳选项。 What Is the Coolest Gas in the Universe?...
下面的短文有15处空白,请根据短文内容为每处空白确定1 个最佳选项。 What Is the Coolest Gas in the Universe?...
admin
2020-12-24
33
问题
下面的短文有15处空白,请根据短文内容为每处空白确定1 个最佳选项。
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 - 91℃ ,which____________ (1) in Antarctica (南极洲)in 1983.
We encounter an interesting situation when we discuss temperatures in ____________(2). Temperatures in Earth orbit(轨道)actually range from about +120℃ to -120℃. The temperature depends upon____________ (3) you are in direct sunlight or in shade. Obviously, -120℃ is colder than our body can____________ (4) endure.
The space temperatures just discussed affect only our area of the solar____________(5). Obviously, it is hotter closer to the Sun and colder as we travel____________ (6)from the Sun. Scientists estimate temperatures at Pluto are about -210℃ . How cold is the lowest estimated temperature in the entire universe? Again, it depends upon your ____________ (7). We are taught it is supposedly _____________ (8) to have a temperature below absolute zero, which is -273℃, at which atoms do not move. Two scientists, Cornell and Wieman, have successfully____________ (9) 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____________ (10)about special light particles (微粒) we now call photons (光子). Bose had trouble ____________ (11) other scientists to believe his theory, so he contacted Albert Einstein. Einstein’s calculations helped him theorize that atoms___________ (12) 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 ____________ (13) accurate. These clocks are so accurate today they would only lose one second____________ (14) six million years! Such accuracy will help us travel in space because distance is velocity (速度)times time (d=vt). With the long distances involved in space____________(15), we need to know time as accurately as possible to get accurate distance.
(10)
选项
A invention
B experiment
C paper
D theory
答案
D
解析
下文有提示,科学家Satyendra Nath Bose做了有关光子的理论研究。选项A的意思是“发明”;选项B的意思是“实验”;选项C的意思是“纸张、论文”;选项D的意思是“理论'答案为D。
转载请注明原文地址:https://ti.zuoweng.com/ti/FLsQKKKQ
相关试题推荐
下面的短文有5处空白,短文后有6个句子,其中5个取自短文,请根据短文内容将其分别放回原有位置,以恢复文章原貌。 ADoctorintheHou...
下面的短文有5处空白,短文后有6个句子,其中5个取自短文,请根据短文内容将其分别放回原有位置,以恢复文章原貌。 ADoctorinthe...
下面的短文有5处空白,短文后有6个句子,其中5个取自短文,请根据短文内容将其分别放回原有位置,以恢复文章原貌。
下面的短文后有2项测试任务:(1)第23~26题要求从所给的6个选项中为第1~4段每段选择1个最佳标题;(2)第27~30题要求从所给的6...
下面的短文后有2项测试任务:(1)第23~26题要求从所给的6个选项中为第1~4段每段选择1个最佳标题;(2)第27~30题要求从所给的6...
下面的短文后有2项测试任务:(1)第23~26题要求从所给的6个选项中为第1~4段每段选择1个最佳标题;(2)第27~30题要求从所给的6...
下面的短文后有2项测试任务:(1)第23~26题要求从所给的6个选项中为第1~4段每段选择1个最佳标题;(2)第27~30题要求从所给的6...
下面的短文后有2项测试任务:(1)第23~26题要求从所给的6个选项中为第1~4段每段选择1个最佳标题;(2)第27~30题要求从所给的6...
下面的短文后有2项测试任务:(1)第23~26题要求从所给的6个选项中为第1~4段每段选择1个最佳标题;(2)第27~30题要求从所给的6...
下面的短文有5处空白,短文后有6个句子,其中5个取自短文,请根据短文内容将其分别放回原有位置,以恢复文章原貌。 TheToughGrassth...
随机试题
进行RFLP和PCR分析时,为保证酶切后产生RFLP在20kb以下,DNA长度要
下列关于设备用房分隔的叙述正确的是()。
下列各项属于经济周期中萧条阶段采用的财务管理战略的有( )。
菲迪克(FIDIC)职业道德准则包括() A.防止有意损害他人名誉和事业的
建设工程合同的订立程序中,属于要约的是() A.招标人通过媒体发布招
《中华人民共和国刑法》规定,贪污罪是指国家工作人员利用职务上的便利,()或以其他手段非法占有财物的行为。A.侵吞B.窃取C.骗取D.索要
关于人民代表大会制度,下列表述正确的是()。 A.人民代表大会制度实现了全民民主 B.我国人民享有直接管理国家事务的权力 C.人民代表大会是最高国...
续发率的定义是( )A.一个潜伏期内接触者中的发病人数/易感接触者总人数×100%B.接触者中发病人数/接触者总人数×100%C.接触者中患病人数/接触
对数正态分布是一种( )A.正态分布B.近似正态分布C.左偏态分布D.对称分布E.右偏态分布
共用题干 TheImpactofAntarcticOzoneHoleTheAntarcticozone(臭氧)holeischangi...