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
85
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.
【7】
选项
A、made up of
B、consisted of
C、constituted of
D、made from
答案
A
解析
be made up of表示“由……组成”;consist of一般用于主动句;constitute是及物动词,不与介词of连用;be made from表示“由……所做成的(用于原材料不易看出的场合)”。显然,答案只能是A。
转载请注明原文地址:https://kaotiyun.com/show/MMmO777K
0
考博英语
相关试题推荐
CantheInternethelppatientsjumpthelineatthedoctor’soffice?TheSiliconValleyEmployersForum,asophisticatedgroupo
TheCommercialRevolutionwasnotconfined,ofcourse,tothegrowthoftradeandbanking.Includedinitalsowerefundamental
His____thighswerebarelystrongenoughtosupporttheweightofhisbody.
Insomecountriespreschooleducationinnurseryschoolsorkindergartens______thestgrade.
Ineconomics,demandimpliessomethingslightlydifferentfromthecommonmeaningoftheterm.Thelayman,forexample,oftenus
ManycountrieswillnotallowcigaretteadvertisingintheirnewspapersoronTVespeciallysincetheadvertisementsareusually
____thiscomingThursday,itwillbetoolatetoenrollforthecourse.
Technologyisatwo-edgedsword.Rarelyisthisasclearasitisintherealmofhealthcare.Technologyallowsdoctorstotest
TributetoDr.CarloUrbani,IdentifierofSARS(1)Onthe29thofMarch,2003,theWorldHealthOrganizationdoctorCarloUr
Ascientificlawisliableatanytimetoneedmodifying.Thishappenswhenfactisdiscoveredwhichseemsto______whatthela
随机试题
A.Na+内流B.Ca2+内流C.Cl-内流D.K+内流E.K+外流心室肌细胞动作电位3期复极化的原因是()。
某电子商务企业每年需要购买8000套儿童服装,每套儿童服装的单价为100元,其年储存成本为3元,每次的订购成本为30元。问:最优订货数量、年订货次数和预期每次订货间隔时间各为多少?(一年以360天计)
在流行病学实验研究中,研究对象包括
与单层螺旋比较,多层螺旋CT的优势不包括
细小玻璃碎片进入眼内,该异物属于
疱疹性咽峡炎咽一结合膜热
甲将一个音响抵押给了乙,办理登记手续,后又质押给丙。丙发现音响有质量问题,拿到戊处修理,后由于丙没有支付修理费,被戊留置,戊又将此质押给不知情的庚。下列说法正确的是()。
何谓教学?中学教学的主要意义是什么?
电视剧《努尔哈赤》属于()。
下列程序的输出结果是#include<iostream.h>intb=2;intfunc(int*a){b+=*a;return(b);}voidmain()
最新回复
(
0
)