首页
登录
职称英语
The difference between a liquid and a gas is obvious 【C1】______the condition
The difference between a liquid and a gas is obvious 【C1】______the condition
游客
2023-11-16
57
管理
问题
The difference between a liquid and a gas is obvious 【C1】______the conditions of temperature and pressure 【C2】______found at the surface of the Earth. A liquid can be kept in an open container and 【C3】______ it to the level of a free surface. A gas forms no free surface but 【C4】______to diffuse throughout the space available; it must 【C5】______be kept in a closed container, as 【C6】______a planet’s atmosphere. The distinction was a prominent feature of early theories 【C7】______the phases of matter. In the nineteenth century, for example, one theory 【C8】______that a liquid could be "dissolved" in a vapor without losing its 【C9】______, and another theory held that the two phases are 【C10】______different kinds of molecules (分子). The theories now prevailing 【C11】______a quite different approach by emphasizing what liquids and gases have in common. They are both forms of matter that have no 【C12】______structure, and they both flow easily. They are fluids.
The 【C13】______similarity of liquids and gases becomes clearly apparent when the temperature and pressure are raised somewhat. 【C14】______a closed container partially filled with a liquid is heated. The liquid expands, or 【C15】______, becomes less dense; some of it evaporates. 【C16】______, the vapor above the liquid surface becomes denser 【C17】______the evaporated molecules are added to it. The combination of temperature and pressure 【C18】______the densities become equal is 【C19】______the critical point. Above the critical point the liquid and the gas can no longer be 【C20】_____; there is a single, undifferentiated fluid phase of uniform density. [br] 【C7】
选项
A、having described
B、described
C、describing
D、to have described
答案
C
解析
动词的不同形式。在这里describe作为修饰theories的后置定语,意思是描述物质状态的理论,所以用describing。
转载请注明原文地址:https://tihaiku.com/zcyy/3192898.html
相关试题推荐
The______betweenGreeceandTroylastedtenyears,bringingseriousdisasters
WhatdoesthespeakersayabouttheroadbetweenMainandQuebec?[br][origin
WhatdoesthespeakersayabouttheroadbetweenMainandQuebec?[br][origin
WhichoneofthefollowingwasNOTamongtheconditionsofthemanseveralyears
Whatistherelationshipbetweenthetwospeakers?[br][originaltext]Man:Hi,
Whatistherelationshipbetweenthetwospeakers?[br][originaltext]Man:Hi,
Whatistheprobablerelationshipbetweenthetwospeakers?[br][originaltext]
Whatistheprobablerelationshipbetweenthetwospeakers?[originaltext]A:Goo
Yetthedifferenceintomeandlanguagemuststrikeus,sosoonasitisp
Yetthedifferenceintomeandlanguagemuststrikeus,sosoonasitisp
随机试题
[originaltext]S:Diplomacoursesareusuallymorenarrowlyspecializedandmore
Adultsaregettingsmarteraboutbowsmartbabiesare.Notlongago,researc
下列关于消防给水形式的叙述中,错误的是()A.按管网的水压可分为低压、高压
关于软件工程的描述,正确的是()。A.在软件产品中的潜在错误成为实际错误前
经行发热肝肾阴虚证的常见临床表现是()A.热势不扬,动则自汗出 B.腹痛
商品流通企业销售总成本中的固定成本包括()等。A:商品保管费 B:固定资产折旧
下列说法正确的是()。 A.发展前景看好的行业,人才选择的余地更大 B.产
(2017年真题)根据《中华人民共和国刑法修正案(六)》的规定,任何单位或个人在
(根据2015年教材,该题目政策过时)下列关于营业税税收优惠的说法,正确的有(
建设工程施工合同交底的目的和任务主要有()。 A.明确成本目标和消耗
最新回复
(
0
)