首页
登录
职称英语
The difference between a liquid and a gas is obvious【C1】______the conditions
The difference between a liquid and a gas is obvious【C1】______the conditions
游客
2023-07-23
29
管理
问题
The difference between a liquid and a gas is obvious【C1】______the conditions of temperature and pressure commonly found【C2】______of the Earth. A liquid can be kept in an open container and【C3】______it to the level of a free surface. A gas forms no free surface but【C4】______to diffuse throughout the space available; it must【C5】______be kept in a closed container, as【C6】______a planet’s atmosphere. The distinction was a【C7】______feature of early theories【C8】______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【C9】______different kinds of molecules(分子). The theories now prevailing【C10】______a quite different approach by emphasizing.【C11】______liquids and gases have in common. They are both forms of matter that have no permanent structure, and they both【C12】______easily. They are fluids.
The【C13】______similarity of liquids and gases becomes clearly apparent when the temperature and pressure are raised somewhat.【C14】______a closed container partially filled with a liquid is heated. The liquid expands, or【C15】______, becomes less dense; some of it evaporates.【C16】______, the vapor above the liquid surface becomes denser as the evaporated molecules are【C17】______it. The combination of temperature and pressure【C18】______the densities become equal is【C19】______the critical point. Above the critical point the liquid and the gas can no longer be【C20】______; there is a single, undifferentiated fluid phase of uniform density. [br] 【C18】
选项
A、on that
B、on which
C、at that
D、at which
答案
D
解析
考查语法结构。本句要求填入一个带介词的关系代词引导一个定语从句修饰前面的先行词,这个介词由先行词决定,本题中先行词是temperature and pressure,表示“在某种温度和压力下”,应用介词at。介词后的关系代词不能用that,而应用which。综上所述,选项D为正确答案。
转载请注明原文地址:https://tihaiku.com/zcyy/2863024.html
相关试题推荐
AboutGender:DifferencesItissaidthatthefirstthing
AboutGender:DifferencesItissaidthatthefirstthing
AboutGender:DifferencesItissaidthatthefirstthing
AboutGender:DifferencesItissaidthatthefirstthing
AboutGender:DifferencesItissaidthatthefirstthing
AboutGender:DifferencesItissaidthatthefirstthing
Sonowyoumaybeaskingwhatisthedifferencebetweengreenteaandthebl
Isuggesthe___________(调整自己以适应)hisnewconditions.shouldadapttohimselfto本题考
[audioFiles]audio_eufm_066_20108[/audioFiles]A、Thedifferenceofmeaning.B、The
[originaltext]Tradebetweencountriesisoneofthemostimportanteconomic
随机试题
"There’sanoldsayinginthespaceworld;amateurstalkabouttechnology,p
[originaltext]W:Ihaveplentyofgoodideas,ProfessorJohnson,buthaven’tbe
ThePeakTimeforEverythingA)Could
Didyouremember______yourappointmentlastnight?A、tokeepB、havingkeptC、ke
我国心理学界一般倾向于把解决问题的思维过程分为发现问题、( )、提出假设和检验假
营业性演出文书填写规范的单位类别,根据经营内容不同,应填写为( )。A.文艺表
患儿男,10岁。多饮,尿量4000~5000ml/d达1个月。查体:生长发育正常
A.育俞 B.天枢 C.大横 D.归来 E.水道位于腹部,脐中旁开4寸的
为防控个人经营贷款的操作风险,贷款银行原则上不能接受()为抵押物。A.产权
瞬时记忆的储存时间大约为()。 A.0.25?2秒B.0.2?0
最新回复
(
0
)