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
The difference between a liquid and a gas is obvious【B1】______ the conditions of temperature and pressure commonly found at
The difference between a liquid and a gas is obvious【B1】______ the conditions of temperature and pressure commonly found at
admin
2009-06-10
35
问题
The difference between a liquid and a gas is obvious【B1】______ the conditions of temperature and pressure commonly found at the surface of the Earth. A liquid can be kept in an open container and 【B2】______ it to the level of a free surface. A gas forms no free surface but 【B3】______ to diffuse throughout the space available; it must【B4】______ be kept in a closed container, as【B5】______ a planet’s atmosphere. The distinction was a prominent feature of early theories 【B6】______ 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 【B7】______ different kinds of molecules (分子). The theories now prevailing 【B8】______ 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 【B9】______ similarity of liquids and gases becomes clearly apparent when the temperature and pressure are raised somewhat.【B10】______ a closed container partially filled with a liquid is heated. The liquid expands, or 【B11】______ , becomes less dense; some of it evaporates.【B12】______ , the vapor above the liquid surface becomes denser as the evaporated molecules are added to it. The combination of temperature and pressure【B13】______ the densities become equal is 【B14】______ the critical point. Above the critical point the liquid and the gas can no longer be 【B15】______ ; there is a single, undifferentiated fluid phase of uniform density.
【B4】
选项
A、however
B、nevertheless
C、so
D、therefore
答案
D
解析
语篇分析能力。此句与上一句之间存在因果上的联系,这从此句中的 kept in a closed container 可知。
转载请注明原文地址:https://kaotiyun.com/show/6A6K777K
0
专业英语四级
相关试题推荐
TheIndiancoastalbelthasnotrecordedmanyTsunamisinthepast.Wavescompanyingearthquakeactivityhavebeenreportedover
TheIndiancoastalbelthasnotrecordedmanyTsunamisinthepast.Wavescompanyingearthquakeactivityhavebeenreportedover
TheroleofeyecontactinaconversationalexchangebetweentwoAmericansiswelldefined;speakersmakeacontactwiththeey
A、Abiologicalreasonforthedifferenceofperformancebetweenpoorchildrenandnormalchildren.B、Apsychologicalreasonfor
HowtoBeRespectfulofYourParentsChangingyourthoughtsandfeelingsaboutyourparents-begrateful—showgratit
(1)Iremembermeetinghimoneeveningwithhispushcart.Ihadmanagedtosellallmypapersandwascominghomeinthesnow.It
(1)Vibrationsinthegroundareapoorlyunderstoodbutprobablywidespreadmeansofcommunicationbetweenanimals.(2)In
PassageThree(1)InaninterviewneartheendofhiscareerthefashiondesignerYvesSaintLaurentconfessedtoaregret:
WhywerethereprotestsinBritainagainstIran?
Inatelephonesurveyofmorethan2,000adults,21%saidtheybelievedthesunrevolved(旋转)aroundtheearth.An【C1】______7%d
随机试题
阳损及阴的病机,主要是指
Acandlelitdinnerworkswondersforromance.Nowscientistssayitcouldalsobegoodforyourheart.Breathingincandlesmoke
在进行系统数据调查时,首先要做的工作是()
Now,thereisagrowingevidencethatnaps(小睡)arecomingback.Manycompanieshavesetupnaproomswithbeds,blanketsandalar
以下治法中.哪一项以五行相克规律为依据
现行三大产业划分是将全部经济活动划分为第一产业、第二产业和第三产业。第一产业是指()。
(2009年真题)A注册会计师负责审计甲公司2008年度财务报表。甲公司本年度银行存款账户数一直为60个。甲公司财务制度规定,每月月末由与银行存款核算不相关的财务人员H针对每个银行存款账户编制银行存款余额调节表。A注册会计师决定运用统计抽样方法测试该项控制
甲、乙、丙三人涉嫌共同故意伤害,在侦查过程中,丙突发心脏病死亡。审判阶段,被害人提起诉讼,将甲、乙以及丙的唯一继承人丁列为被告。如果丁宣布放弃继承,下列选项正确的是:
A.条件(1)充分,但条件(2)不充分B.条件(2)充分,但条件(1)不充分C.条件(1)和条件(2)单独都不充分,但条件(1)和条件(2)联合起来充分D.条件(1)充分,条件(2)也充分E.条件(1)和条件(2)单独都不充分,条件(1)和条件(2
Wheredidthemoviesbegin?ItisoftensaidthattheyareanAmericaninvention,andthisisnotentirelytree.Themotionpict
最新回复
(
0
)