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【66】the conditions of temperature and pressure commonly found at the surface
The difference between a liquid and a gas is obvious【66】the conditions of temperature and pressure commonly found at the surface
admin
2013-02-03
41
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.
选项
答案
on
解析
根据后面的the conditions of可知此处填on。on the conditions of在…条件下。
转载请注明原文地址:https://www.kaotiyun.com/show/iXyK777K
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
Alice’sAdventuresinWonderland(oftenshortenedtoAliceinWonderland)isgenerallythoughtofasoneofthegreatestbooksf
RareamongAmericanactors,DepphasmadeanameforhimselfeffortlesslyswitchingbetweenmainstreamHollywoodmoviesandmore
Thedemandforenergyiscertaintoincrease...asaneverlargerpopulationstrivestoimproveitsstandardofliving.Petroleum
ScottishwriterAdamSmithisoftenconsideredthemostimportanteconomisttheworldhaseverknown.Theconceptsofbargaining
Formanypeopletoday,readingisnolongerrelaxation.Tokeepuptheirwork,theymustreadletters,reports,tradepublication
Thesentence"ShallIcomparetheetoasummer’sday?"isthebeginninglineofoneofShakespeare’s______.
ThesamewordcanbeaddedtotheendofGRASSandthebeginningofSCAPEtoformtwootherEnglishwords?
HolmesandWatsonhadapprehendedthreepeopleonsuspicionofshoplifting.Thethree,aman,awomanandaboy,wereinterview
FastBAA’sHeathrowExpressistherevolutionarynon-stoptrainservicethatspeedsbetweenHeathrowAirportandPaddington
随机试题
先天性腹股沟斜疝是哪种解剖因素所致_______。
女性,28岁。间断腹痛腹泻2年,大便每天2-5次,糊状,有时带黏液,不含脓血。患者发病以来体重正常,睡眠尚可。多次胃肠系统钡餐和纤维结肠镜检查无异常发现。本例最可能的诊断为
下列哪种疾病可能会出现补体水平增高
可用石油醚提取的成分是
水带长度小于水带长度规格()m以上的,则可以判为该产品为不合格。
身高()的儿童随同成人乘坐列车可享受半价客票、加快票和空调票。
下列情形中,导游员可允许旅游者离团()。
著名学者钱乘旦先生认为:“光荣革命后英国建立了一个合适的政治制度,这个制度保证社会有宽松、和平的环境,让人们追求个人的目标,最大限度地发挥创造能力。”就此理解18世纪英国领先世界的最大优势在于()。
Theideaisasaudaciousasitaltruistic:provideapersonallaptopcomputertoeveryschoolchild—particularlyinthepoorestp
庙会(templefair)是中国一种传统的节日活动。它源于古代人们的祭祀仪式(sacrificialceremony),逐渐演变成物品交流的集市和文化表演的场所。庙会一般在寺庙里或寺庙附近的空地上举行。虽然各地举办庙会的日子有所不同,但活动内容都差不
最新回复
(
0
)