首页
登录
职称英语
The difference between a liquid and a gas is obvious(1)_____ the conditions
The difference between a liquid and a gas is obvious(1)_____ the conditions
游客
2024-10-06
41
管理
问题
The difference between a liquid and a gas is obvious(1)_____ the conditions of temperature and pressure commonly found(2)_____ of the Earth. A liquid can be kept in an open container and (3)_____ it to the level of a free surface. A gas forms no free surface but(4)_____ to diffuse throughout the space available; it must(5)_____ be kept in a closed container, as(6)_____ a planet’s atmosphere. The distinction was a(7)_____ feature of early theories(8)_____ 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(9)_____ different kinds of molecules. The theories now prevailing(10)_____ a quite different approach by emphasizing(11)_____ liquids and gases have in common. They are both forms of matter that have no permanent structure, and they both(12)_____ easily. They are fluids.
The(13)_____ similarity of liquids and gases becomes clearly apparent when the temperature and pressure are raised somewhat.(14)_____ a closed container partially filled with a liquid is heated. The liquid expands, or(15)______, becomes less dense; some of it evaporates.(16)_____, the vapor above the liquid surface becomes denser as the evaporated molecules are(17)_____ it. The combination of temperature and pressure(18)_____ the densities become equal is(19)_____ the critical point. Above the critical point the liquid and the gas can no longer be(20)_____; there is a single, undifferentiated fluid phase of uniform density. [br] (18)
选项
A、on that
B、on which
C、at that
D、at which
答案
D
解析
本空格要求填入带介词的关系代词,这个介词由先行词决定。本题中先行词为temperatureand pressure,表示“在某种温度和压力下”.应用介词at,故选D。
转载请注明原文地址:https://tihaiku.com/zcyy/3790009.html
相关试题推荐
Thedifferencebetween"writer"and"reporter"or"journalist"isn’tthatth
Thedifferencebetween"writer"and"reporter"or"journalist"isn’tthatth
Thedifferencebetween"writer"and"reporter"or"journalist"isn’tthatth
Thedifferencebetween"writer"and"reporter"or"journalist"isn’tthatth
Thedifferencebetween"writer"and"reporter"or"journalist"isn’tthatth
Thedifferencebetween"writer"and"reporter"or"journalist"isn’tthatth
Thedifferencebetween"writer"and"reporter"or"journalist"isn’tthatth
Thedifferencebetween"writer"and"reporter"or"journalist"isn’tthatth
Thedifferencebetween"writer"and"reporter"or"journalist"isn’tthatth
Thedifferencebetween"writer"and"reporter"or"journalist"isn’tthatth
随机试题
[originaltext]ThisisNicodemus,thefirstall-blackpioneertown,establishe
[originaltext]W:There’sisanelementthereaboutcompetitionthough,isn’tth
[originaltext]Haveyouevertraveledonanyofthegiantjetairplanes?If
电力系统的静态等值方法,就是用等值的方法取代系统中某些不感兴趣的部分或是某些不
(2016年)随着复利次数的增加,同一个名义年利率求出的有效年利率会不断____
主要见于肾盂肾炎的管型是A.红细胞管型B.白细胞管型C.上皮细胞管型D.透明管型
据对全国规模以上文化及相关产业5.9万家企业调查,2020年上半年,上述企业实现
《物业管理条例》规定,要求物业承接验收时,建设单位向物业服务企业移交的技术资料包
组织价值观念系统内分两个水平:价值概念化和()。
A.人乳头瘤状病毒 B.森林脑炎病毒 C.巨细胞病毒 D.狂犬病病毒 E
最新回复
(
0
)