首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
A. solid B. made up of C. equal D. fills E. describing F. vapor G. therefore H. fundamental I. elementary J. distinguished
A. solid B. made up of C. equal D. fills E. describing F. vapor G. therefore H. fundamental I. elementary J. distinguished
admin
2017-05-19
22
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.
【C8】
选项
答案
O
解析
由空格前的becomes可知空格处应填入形容词作表语。上文提到“液体膨胀”,这意味着密度降低,空格前有less,因此空格处应填入dense“稠密的”。
转载请注明原文地址:https://kaotiyun.com/show/RHDK777K
0
专业英语四级
相关试题推荐
TheU.S.willcometoloseitsleadingplaceintechnologyprobablybecause
[A]brief[B]conclude[C]cumulative[D]descendants[E]Developed[F]Exotic[G]hazard[H]ingested[I]inhabitants[J]lingering[K]marine[L]n
[A]brief[B]conclude[C]cumulative[D]descendants[E]Developed[F]Exotic[G]hazard[H]ingested[I]inhabitants[J]lingering[K]marine[L]n
[A]addicts[B]adjustments[C]administration[D]amazing[E]bother[F]compares[G]conserves[H]constantly[I]dominant[J]eliminate[K]laun
Theworld’sleadingclimatescientistshavesetoutindetailforthefirsttimehowmuchmorecarbondioxidehumanscanpourin
Theworld’sleadingclimatescientistshavesetoutindetailforthefirsttimehowmuchmorecarbondioxidehumanscanpourin
[A]advocates[B]approaching[C]constantly[D]decrease[E]enlarge[F]financial[G]fundamental[H]gracious[I]ignored[J]intention[K]just
CheerleadingCheerleadersarepartofathleticcompetitionsthroughouttheUnitedStates./Theyleadthecrowdincheering
A、Askforherparents’permission.B、Notmentionthepartytoherparents.C、HelpHeathertotalkwithherparents.D、Listento
Thereisnoshortageoftipsters(提供内幕的人)aroundoffering"get-rich-quick"opportunities.Butifyouareaseriousprivateinves
随机试题
下列静脉的回流,不经右心房的是()
良性葡萄胎:绒癌:
颅脑轴扫,重点观察第四脑室和基底节区结构时应采用的扫描基线是
受术者发生心率减慢、面色苍白等人工流产综合症时,首选的护理措施是
舌损伤的处理原则是
面神经的鼓索支分出处远端损伤表现是
阿司匹林的抗血小板作用机制为
昌盛股份有限责任公司2014年度发生下列经济事项,则影响公司资本公积的有()。
已知学生关系S(学号、姓名、班级、课程名称、成绩),学号由入学年份、系别、专业编号和班内编号组成。则其侯选关键字是()。
______,shecannowonlystayathomeandimaginetheatmospherethere.
最新回复
(
0
)