首页
登录
职称英语
The difference between a liquid and a gas is obvious【l】the conditions of tem
The difference between a liquid and a gas is obvious【l】the conditions of tem
游客
2025-05-03
41
管理
问题
The difference between a liquid and a gas is obvious【l】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. [br]
选项
A、in a word
B、in the meantime
C、in other words
D、in that case
答案
C
解析
根据物理知识判断,可知expand(膨胀)和become less dense(密度变小)指的是同一意思。所以正确答案为C(换句话说)。
转载请注明原文地址:https://tihaiku.com/zcyy/4060346.html
相关试题推荐
Eachandeverydifference______contradiction.A、haveB、containC、containsD、will
"’Betweenyouandme,hesaidyouareagoodfornothing.""______"A、Sodidhe.
Scientistshavediscoveredaclose______betweensmokingandseveralseriousdise
Theovercrowdedlivingconditions______aheavystrainonthefamily.A、setB、put
Ourape-menforefathershadnoobviousnaturalweaponsinthestrugglefors
Ourape-menforefathershadnoobviousnaturalweaponsinthestrugglefors
Ourape-menforefathershadnoobviousnaturalweaponsinthestrugglefors
Ourape-menforefathershadnoobviousnaturalweaponsinthestrugglefors
Ourape-menforefathershadnoobviousnaturalweaponsinthestrugglefors
Ourape-menforefathershadnoobviousnaturalweaponsinthestrugglefors
随机试题
Thispassageoffersadviceon______.[br]Youreadthewholearticlecarefully__
Thechimneyvomitedacloudofsmoke.A、ignitedB、immersedC、emittedD、huggedCvo
AstrologyA)Astrologyisthestudyofhowthesun,themoon,planets,a
Birth,marriageanddeath:thesearethegreatesteventsinhumanlife.Many
[originaltext]W:Tom,doyouhaveaminute?M:Oh,hi,Cathy,sure.Anything?W
各种运输方式内外部的各个方面的构成和联系,就是( )。 A.运输系统
儿童对勇敢和冒险不能分辨主要是他们抽象逻辑思维水平比较低的缘故。
(2020年真题)某女,77岁。4月前因肺癌手术治疗,其后化疗3次。刻下面色萎黄
下列关于栓剂的正确叙述为A.栓剂可完全避免药物的首过效应 B.栓剂塞入直肠的深
临床上主要用作表面麻醉的是()A.普鲁卡因 B.利多卡因 C.布比卡因 D
最新回复
(
0
)