首页
登录
职称英语
A. solid B. made up of C. equal D. fills E. describing F. vapor G. there
A. solid B. made up of C. equal D. fills E. describing F. vapor G. there
游客
2024-09-10
17
管理
问题
A. solid B. made up of C. equal D. fills E. describing
F. vapor G. therefore H. fundamental I. elementary J. distinguished
K. flow L. refuting M. consisted of N. however O. dense
The difference between a liquid and a gas is obvious under the conditions of temperature and pressure commonly found at the surface of the Earth. A liquid can be kept in an open container and 【C1】______ it to the level of a free surface. A gas forms no free surface but tends to diffuse throughout the space available; it must【C2】______ be kept in a closed container, as in the case of a planet’s atmosphere. The distinction was a prominent feature of early theories【C3】______ the phases of matter. In the nineteenth century, for example, one theory maintained that a liquid could be "dissolved" in a【C4】______ without losing its identity, and another theory held that the two phases are【C5】______ different kinds of molecules. The theories now prevailing take 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【C6】______ easily. They are fluids.
The【C7】______similarity of liquids and gases becomes clearly apparent when the temperature and pressure are raised somewhat. Suppose a closed container partially filled with a liquid is heated.
The liquid expands, or in other words, becomes less【C8】______; some of it evaporates. In contrast, the vapor above the liquid surface becomes denser as the evaporated molecules are added to it. The combination of temperature and pressure at which the densities become【C9】______ is called the critical point. Above the critical point the liquid and the gas can no longer be【C10】______ ; there is a single, undifferentiated fluid phase of uniform density. [br] 【C10】
选项
答案
J
解析
空格前的be提示空格处填入形容词或动词分词。根据下文的“只存在一种同样密度的、没有区别的流体”,推断本句表示“超过临界点,无法区分哪是液体哪是气体”,distinguished“区别”符合题文意。
转载请注明原文地址:https://tihaiku.com/zcyy/3752131.html
相关试题推荐
A.solidB.madeupofC.equalD.fillsE.describingF.vaporG.there
A.solidB.madeupofC.equalD.fillsE.describingF.vaporG.there
A.solidB.madeupofC.equalD.fillsE.describingF.vaporG.there
A.solidB.madeupofC.equalD.fillsE.describingF.vaporG.there
A.solidB.madeupofC.equalD.fillsE.describingF.vaporG.there
A.solidB.madeupofC.equalD.fillsE.describingF.vaporG.there
A.solidB.madeupofC.equalD.fillsE.describingF.vaporG.there
A.solidB.madeupofC.equalD.fillsE.describingF.vaporG.there
A.solidB.madeupofC.equalD.fillsE.describingF.vaporG.there
A.solidB.madeupofC.equalD.fillsE.describingF.vaporG.there
随机试题
About25millionautoaccidentsoccurintheUnitedStateseachyear.Appro
IwasinnorthernKenya,whichissufferingthroughtheworstdroughttohi
Scientificresearchresultscannowbequickly______tofactoryproduction.A、us
反馈在操作技能的学习过程中的作用非常关键,其中_____的作用尤为明显。
关于雌激素的药理作用,不正确的是A.参与形成月经周期 B.促进乳汁分泌 C.
麻醉解除且血压平稳后,颈、胸、腹部手术患者应取<P>A.半坐卧位<br>B.头高
电压互感器例行巡视项目包括()外绝缘表面完整,无裂纹、放电痕迹、老化迹象,防污闪
写字楼租赁合同中,常采用()的收费方式。A:代收代缴B:定期增加C:毛租D
上市公司通过股票市场发行股票来为公司筹集资本,体现了股票市场的()功能。A.积
我国法律对( )提供特殊就业保护。A.残疾人 B.农村剩余劳动力 C.下岗
最新回复
(
0
)