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【1】the conditions of temperature and pressure commonly found at the surface
The difference between a liquid and a gas is obvious【1】the conditions of temperature and pressure commonly found at the surface
admin
2013-11-24
38
问题
The difference between a liquid and a gas is obvious【1】the conditions of temperature and pressure commonly found at the surface of the Earth. A liquid can be kept in an open container and【2】it to the level of a free surface. A gas forms no free surface but【3】to diffuse throughout the space available; it must【4】be kept in a closed container, as【5】a planet’s atmosphere. The distinction was a prominent feature of early theories【6】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【7】different kinds of molecules(分子). The theories now prevailing【8】a quite different approach by emphasizing what liquids and gases have in common. They are both forms of matter that have no permanent structure, and they both flow easily. They are fluids.
The【9】similarity of liquids and gases becomes clearly apparent when the temperature and pressure are raised somewhat.【10】a closed container partially filled with a liquid is heated. The liquid expands, or【11】, becomes less dense; some of it evaporates.【12】, the vapor above the liquid surface becomes denser as the evaporated molecules are added to it. The combination of temperature and pressure【13】the densities become equal is【14】the critical point. Above the critical point the liquid and the gas can no longer be【15】; there is a single, undifferentiated fluid phase of uniform density.
【12】
选项
A、Similarly
B、In contrast
C、Furthermore
D、Instead
答案
B
解析
联系原文,该空所在句表示与上一句相反的意思。A(同样地,类似于)、c(此外,而且)和D(代替,改为)均不符合。in contrast意为“相反,反之”,故选B。
转载请注明原文地址:https://kaotiyun.com/show/5MmO777K
0
考博英语
相关试题推荐
Perhapsthemoststrikingqualityofsatiricliteratureisitsfreshness,itsoriginalityofperspective.Satirerarelyofferso
Humanchoice,nottheintrinsiccontentofscience,determinestheoutcomeandscientists,ashumanbeings,thereforehaveaspecial
Manypuremetalshavelittleusebecausetheyaretoosoft,rusttooeasily,orhavesomeother_______.
Itisnoteasytotalkaboutyourfeelingswhenyouarefourweeksold.Thatisashame,becausefromthemomentwearebornwe
Itisfutiletodiscussthematterfurther,because_____goingtoagreeuponanythingtoday.
TheCommercialRevolutionwasnotconfined,ofcourse,tothegrowthoftradeandbanking.Includedinitalsowerefundamental
Today,theTowerofLondonisoneofthemostpopulartourist【1】andattractsoverthreemillionvisitorsayear.Itwasoccasion
StandingontherimoftheGrandCanyon,gazingacrossthisgiantwoundintheEarth’ssurface,avisitormightassumethatthe
Itispossibletopersuademankindtolivewithoutwar?Warisanancientinstitutionwhichhasexistedforatleastsixthousan
随机试题
光纤吹缆机连接或拆管前,应保持其内的压力。()
关于市场风险下列说法正确的是()。
不符合肺癌特点的是
关于经颈静脉肝内门体分流术,下列哪一项不正确
下列方法属于事故风险源项的定性分析方法的有()。
某工地检测新进场的一批砌块的强度,这一批购进的砌块为MU30普通砖和MUl5灰砂砖各12万块,应划分()个检验批。
______somethingdrastichappensbeforemidnight,thepostalworkerswillmostlikelywalkoutontheirjobs.
我国《刑法》规定,国家考试中,组织作弊情节严重者可判处()有期徒刑并处罚金。
设X为总体,E(X)=μ,D(X)=σ2,X1,X2,…,Xn为来自总体的简单随机样本,S2=,则E(S2)=_________.
【B1】【B3】
最新回复
(
0
)