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
The difference between a liquid and a gas is obvious【C1】______the conditions of temperature and pressure commonly found at the s
The difference between a liquid and a gas is obvious【C1】______the conditions of temperature and pressure commonly found at the s
admin
2018-10-19
27
问题
The difference between a liquid and a gas is obvious【C1】______the conditions of temperature and pressure commonly found at the surface of the Earth. A liquid can be kept in an open container and fills it to the level of a free surface. A gas forms no free surface but tends to diffuse throughout the space available: it must【C2】______be kept in a closed container, as in the 【C3】______of a planet’s atmosphere. The distinction was a prominent feature of early theories 【C4】______(describe)the phases of matter. In the nineteenth century, for example, one theory maintained that a liquid could be "dissolved" in a vapor without losing its identity, and another theory held that the two phases are made up of different kinds of molecules(分子). The theories now prevailing【C5】t______a quite different approach by emphasizing what liquids and gases have in common. They are both forms of matter【C6】______have no permanent structure, and they both flow easily. They are fluids.
The【C7】______(fundament)similarity of liquids and gases becomes clearly apparent when the temperature and pressure are raised somewhat. Suppose a closed container partially filled with a liquid is heated. The liquid expands, or in other【C8】______, becomes less dense: some of it evaporates. In contrast, the vapor above the liquid surface becomes dense as the evaporated molecules are added to it. The combination of temperature and pressure【C9】______ which the densities become equal is called the critical point. Above the critical point the liquid and the gas can no longer be【C10】______(distinguish): there is a single, undifferentiated fluid phase of uniform density.
【C7】
选项
答案
fundamental
解析
句意:液体与气体之间的根本相似性在温度和压强有所提高时变得十分明显。
转载请注明原文地址:https://kaotiyun.com/show/siyK777K
本试题收录于:
A类竞赛(研究生)题库大学生英语竞赛(NECCS)分类
0
A类竞赛(研究生)
大学生英语竞赛(NECCS)
相关试题推荐
Cultureisatermforwhichitisverydifficulttogiveaprecisemeaning.Thewordmeanssomanydifferentthingstodifferen
ClassesinStudioeveryafternoonRoom51on【21】OnFridayscanuse【22】forprivatestudyExtracourses:Monda
Thedeathwatchbeetleisthoughtofasthedevil’spestinchurchesandoldhouses,butinnaturalhabitatsitinfestsawidera
WhenVetwasalittlegirl,herfamilyconsistedof______.
Whyisitsaidthattheeconomyishealthywith20millionunemployed?
Inthetwonumericalsequencesbelow,onenumberthatappearsinthetopsequenceshouldappearinthebottomsequenceandvice
LatertheGreeksmovedeastfromCumaetoNeapolis,theNewCity,alittlefartheralongthecoastwheremodemNaplesnowstands
FannyKemble(1809—93)wasthenieceoftwoShakespeareantragedians,SarahSiddonsandSiddons’sbrother,JohnPhilipKemble.【R1】
Sheis______amusicianthanherbrother.
随机试题
一个国家在一定时期内向社会提供的最终产品和劳务总量是()
患者男性,49岁,发作性胸骨后疼痛2天,含服硝酸甘油可缓解,1小时前再发胸痛伴大汗,含服硝酸甘油不能缓解就诊,急查心电图示V1~V3导联ST段抬高0.5~0.8mV,呈单向曲线,未见坏死性Q波。提示药物溶栓后冠状动脉再通的心电图表现是
我国目前应用的乙型肝炎疫苗属于脊髓灰质炎糖丸属于
根据公司法律制度的规定,持有有限责任公司全部股东表决权10%以上的股东,在发生某些法定事由时,可以提起解散公司的诉讼,人民法院应予受理。下列各项中,属于该法定事由的有()。
对与错和是否违反规定是两回事。可能会有一些规定,禁止本身就没有错的事情,例如某些国家的法律禁止批评政府;也可能有一些规定,要求实行本身就不对的事情,例如有些法律要求在公共场所实行种族隔离。并且,像评价行为一样,我们也可以评价一些规定的对与错。下面
若变量都已正确说明,则以下程序段的输出结果是()a=2;b=3;printf(a>b?’’***a=%d’’:’’###b=%d’’a,b);
StoryTellingI.StatusofstorytellingA.Inthepastprovidedcultural【T1】______【T1】______providedmoraleducation
ManyeconomistssaytheUnitedStateswill_____economicrecessioninatleastoneyear.
A、BecausehisgrossmonthlyincomeissufficientB、Becauseitsmonthlypaymentisrelativelylow.C、Becausetheinterestrateof
AFlattoLetAcomfortableflatwith3bedrooms,onedining-room,oneliving-roomandonebathroom,istolet.Theflatisloca
最新回复
(
0
)