首页
登录
职称英语
The difference between a liquid and a gas is obvious【66】the conditions of te
The difference between a liquid and a gas is obvious【66】the conditions of te
游客
2023-10-13
58
管理
问题
The difference between a liquid and a gas is obvious【66】the conditions of temperature and pressure commonly found at the surface of the Earth. A liquid can be kept in an open container and f【67】it to the level of a free surface. A gas forms no free surface but tends to diffuse throughout the space available ; it must【68】be kept in a closed container, as in the【69】of a planet’s atmosphere. The distinction was a prominent feature of early theories【70】(describe) 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 made up of different kinds of molecules (分子). The theories now prevailing t【71】a quite different approach by emphasizing【72】liquids and gases have in common. They are both forms of matter【73】have no permanent structure, and they both flow easily. They are fluids.
The f【74】similarity of liquids and gases becomes clearly apparent when the temperature and pressure are raised somewhat. S【75】a closed container partially filled with a liquid is heated. The liquid expands, or in other【76】, becomes less dense; some of it evaporates. In contrast, the vapor above the liquid surface becomes dense as the evaporated molecules are added【77】it. The combination of temperature and pressure【78】which the densities become equal is c【79】the critical point. Above the critical point the liquid and the gas can no longer be dis【80】; there is a single, undifferentiated fluid phase of uniform density. [br]
选项
答案
that
解析
that引导定语从句,修饰forms of matter。
转载请注明原文地址:http://tihaiku.com/zcyy/3095458.html
相关试题推荐
It’snotliquid,gasorsolid.It’snotananimal,aplantoramineral.It’s
In1908,thefirstinternationalrugbymatchwas________inParisbetweenFrance
Inaddition,therearetoomanyregionaldifferencesinvocabularyofthelangua
Notonlyshouldyougetused__________underdifficultconditionsbutyoualso
Thereisabigdifferencebetweentownlifeand【D1】__________inEngland.
Thereisabigdifferencebetweentownlifeand【D1】__________inEngland.
Whichisthemainpurposeoftheinterview?A、Toanalyzethecurrentconditionso
MybestfriendandI________ourdifferencesindifferentways.Iliketotalk
Thereisunfortunatelya______betweenthepettycashslipsandtheactualmone
Itisinterestingtoreflectforamomentuponthedifferencesintheareas
随机试题
Corporationsasagroupofferavarietyofjobs.Mostlargecompaniessendp
[originaltext]Tunisiaisobservingthreedaysofmourningforpeoplekilled
机动车驾驶证遗失、损毁无法辨认时,机动车驾驶人应当向机动车驾驶证核发地车辆管理所
A.绝对收敛 B.条件收敛 C.发散 D.敛散性与λ有关
A. B. C. D.
技术成果的运行和改进活动,不包含()。A.对技术研发进行规划与预算 B.
觅食反射消失的年龄为A.1~3个月 B.3~5个月 C.4~7个月 D.5
左边是给定的四面体外表面的展开图,右面哪一项能由它折叠而成? A.如上图所示
学生甲临床检查时发现患者牙釉质半透明度有轻度改变,可见少量白色斑纹,怀疑为氟牙症
隔离开关开、合小电流的额定值通常不大于()。 A.0.5A;B1A;C
最新回复
(
0
)