首页
登录
职称英语
A. solid B. made up of C. equal D. fills E. des
A. solid B. made up of C. equal D. fills E. des
游客
2024-08-31
9
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:http://tihaiku.com/zcyy/3737124.html
相关试题推荐
[originaltext]M:Howmuchdoesextrareadingtimehelp?Andwhatareotherstat
[originaltext]W:Hello,Tom.M:Hello.Feelingbrighttoday,Cathy?W:Iamfe
WebChat1.Participantsinchatsessions-Inthepa
WebChat1.Participantsinchatsessions-Inthepa
WebChat1.Participantsinchatsessions-Inthepa
WebChat1.Participantsinchatsessions-Inthepa
WebChat1.Participantsinchatsessions-Inthepa
WebChat1.Participantsinchatsessions-Inthepa
ReadcarefullythefollowingexcerptonshoppinghabitsargumentintheUSA,
PASSAGETHREE[br]HowcanwesummarizeParagraph5?Itcanbesummarizedashow
随机试题
IntheUnitedStates,thefourthThursdayinNovemberiscalledThanksgivi
学生上课回答声音小,你让他大点声,他顶撞你你怎么办?
根据《水电建设工程质量管理暂行办法》(电水农[1997]220号),有关施工质
货币政策与财政政策配合的主要方式中,()的应用背景是经济严重萧条--社会有效需
(2018年5月)对企业人工成本和人力资源管理费用的整体规划是指()A.战略规
工程计量的依据一般有()。A.质量合格证书 B.承包人填报的工程款支付申请
(2020年真题)英国土木工程师学会发布的工程施工合同(ECC)的基本组成内容有
标准电极电势是()。 A.电极相对于标准氧电极的电极电势 B.在标准状态下
当增加焊接工艺评定的补加因素时,按增加的补加因素增焊( )试件进行试验。A.拉
斜坡堤在安装护面块体前,应对堤身以下项目进行检查:(),不符合要求时,应进行修
最新回复
(
0
)