首页
登录
职称英语
The difference between a liquid and a gas is obvious【66】the conditions of te
The difference between a liquid and a gas is obvious【66】the conditions of te
游客
2023-10-13
67
管理
问题
The difference between a liquid and a gas is obvious【66】the conditions of temperature and pressure commonly found at the surface of the Earth. A liquid can be kept in an open container and f【67】it to the level of a free surface. A gas forms no free surface but tends to diffuse throughout the space available ; it must【68】be kept in a closed container, as in the【69】of a planet’s atmosphere. The distinction was a prominent feature of early theories【70】(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 t【71】a quite different approach by emphasizing【72】liquids and gases have in common. They are both forms of matter【73】have no permanent structure, and they both flow easily. They are fluids.
The f【74】similarity of liquids and gases becomes clearly apparent when the temperature and pressure are raised somewhat. S【75】a closed container partially filled with a liquid is heated. The liquid expands, or in other【76】, becomes less dense; some of it evaporates. In contrast, the vapor above the liquid surface becomes dense as the evaporated molecules are added【77】it. The combination of temperature and pressure【78】which the densities become equal is c【79】the critical point. Above the critical point the liquid and the gas can no longer be dis【80】; there is a single, undifferentiated fluid phase of uniform density. [br]
选项
答案
Suppose
解析
suppose假定…,后常接一个省略了that的宾语从句,用来展开说明。
转载请注明原文地址:https://tihaiku.com/zcyy/3095460.html
相关试题推荐
Thepolicemanlookedme______severaltimesandobviouslydislikedwhathesaw.A、
Acollisionbetweenanaircraftandoneormorebirdsistermedabird-strik
Acollisionbetweenanaircraftandoneormorebirdsistermedabird-strik
In1908,thefirstinternationalrugbymatchwas________inParisbetweenFrance
Youshouldtrytomakesome________ofyourdifferencessothatyoucanworktoge
Itisconvenienttodistinguish(区分)betweennonverbalandverbalcommunication,j
Inaddition,therearetoomuchregionaldifferencesinvocabularyforthelangu
Pronunciationisoneofthemostobviousareas.Forexample,inOldEnglish,pe
Notonlyshouldyougetused__________underdifficultconditionsbutyoualso
Thereisabigdifferencebetweentownlifeand【D1】__________inEngland.
随机试题
Accordingtotheauthor,abornnaturalistshouldfirstofallbe______.[br]Th
根据广告时间分类,5年以上的广告计划属于()A.近期广告计划 B.长期广告计
错误推测法属于()。A.白盒测试 B.灰盒测试 C.黑盒测试 D.静态测
嗅区黏膜为:()A.复层鳞状上皮 B.假复层纤毛柱状上皮 C.假复层无纤
()对内部审计的独立性和有效性承担最终责任。A.监事会 B.董事会 C.股
左边给定的是纸盒外表面的展开图,右边哪一项能由它折叠而成?请把它找出来。 A.
2012年全国国内生产总值519322亿元,按可比价格计算,比上年增长7.8%。
下列选项中最符合所给图形规律的是()。 A.如图所示 B.如图所示
用吲哚环代替六氢萘环,第一个通过全合成得到的药物是
关于建设工程分包的说法,正确的是(?)。A.专业承包单位可以将其承包工程中的劳务
最新回复
(
0
)