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
21
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] 【C9】
选项
答案
C
解析
空格前的become提示空格处填入形容词作表语。最后一句提到,高于临界点,只存在一种同样密度的、没有区别的流体,因此推断在临界点时,密度也是相等的。词库中的equal“相等的”符合要求。
转载请注明原文地址:https://tihaiku.com/zcyy/3752130.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
TowardaSmarterWebWiththegrowthofth
Vibrationsinthegroundareapoorlyunderstoodbutprobablywidespreadmean
[originaltext]JapanesestyleconversationsdevelopquitedifferentlyfromW
前牙3/4冠邻沟的主要作用是A.阻止牙合向脱位 B.阻止龈脱位 C.阻止近远
一个无症状的18岁大学新生,男,在体格检查中发现血压148/90mmHg,眼底检
开办药品批发企业,审批的药品监督管理部门是A.国家食品药品监督管理局B.省级药品
每个房间相邻2个疏散门最近边缘之间的水平距离不小于()。A.4m B.5m
十八大提出政治体制改革的根本是 A.坚持党的领导B.加强依法治国 C
下列关于土地增值税的说法正确的是( )。A.对于一方出地,一方出资金,双方合作建
货币需求作为一种经济需求,是由()共同决定。A.货币需求能力 B.货币价值
最新回复
(
0
)