首页
登录
职称英语
The difference between a liquid and a gas is obvious【C1】______the conditions
The difference between a liquid and a gas is obvious【C1】______the conditions
游客
2025-03-31
25
管理
问题
The difference between a liquid and a gas is obvious【C1】______the conditions of temperature and pressure commonly found at the surface of the Earth. A liquid can be kept in an open container and【C2】______it to the level of a free surface. A gas forms no free surface but【C3】______to diffuse throughout the space available; it must【C4】______be kept in a closed container, as【C5】______a planet’s atmosphere. The distinction was a prominent feature of early theories【C6】______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【C7】______different kinds of molecules(分子). The theories now prevailing【C8】______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【C9】______similarity of liquids and gases becomes clearly apparent when the temperature and pressure are raised somewhat.【C10】______a closed container partially filled with a liquid is heated. The liquid expands, or【C11】______, becomes less dense; some of it evaporates.【C12】______, the vapor above the liquid surface becomes denser as the evaporated molecules are added to it. The combination of temperature and pressure【C13】______the densities become equal is【C14】______the critical point. Above the critical point the liquid and the gas can no longer be【C15】______; there is a single, undifferentiated fluid phase of uniform density." [br] 【C4】
选项
A、however
B、nevertheless
C、so
D、therefore
答案
D
解析
联系上下文,该空所在句与前一句构成因果关系,因而要选择表结果的连词。D项(因此,所以)符合要求,为正确答案。
转载请注明原文地址:https://tihaiku.com/zcyy/4020804.html
相关试题推荐
Theonlysafewayofdistinguishingbetweenedibleandpoisonousmushroomsisto
Thedifferencebetweenaliquidandagasisobvious【C1】______theconditions
Thedifferencebetweenaliquidandagasisobvious【C1】______theconditions
Thedifferencebetweenaliquidandagasisobvious【C1】______theconditions
Thedifferencebetweenaliquidandagasisobvious【C1】______theconditions
Thedifferencebetweenaliquidandagasisobvious【C1】______theconditions
Thedifferencebetweenaliquidandagasisobvious【C1】______theconditions
Ourape-menforefathershadnoobviousnaturalweaponsinthestrugglefors
Ourape-menforefathershadnoobviousnaturalweaponsinthestrugglefors
Ourape-menforefathershadnoobviousnaturalweaponsinthestrugglefors
随机试题
Ithinkhe’sthemostcharming,most______manI’veeverknown.A、conservativeB、c
Whatcanbeforecastifaneyeisseeninthecenterofastormbyvisiblesatel
我国关于高等教育方针的规定中不包括( )。A.高等教育的总体方向 B.高等教育
下列结论中正确的是:
下列哪项不属于溢出性尿蛋白A.清蛋白 B.本-周蛋白 C.肌红蛋白 D.血
如果张某家庭的核心资产配置是股票60%、债券30%和货币10%,那么从家庭理财的
关于高聚物改性沥青防水卷材的说法,正确的有()。A、高聚物改性沥青防水卷材是新型
Shewasoneoftheleadingwritersinh
在进行城市道路桥洞设计时,桥下通行公共汽车的高度限界为()。(2011年真
商业银行的流动性需求是由一定水平的核心存款以及一定数量的流动性负债来决定的。(
最新回复
(
0
)