首页
登录
职称英语
[originaltext] Can you imagine ice that does not melt and is not wet? Have y
[originaltext] Can you imagine ice that does not melt and is not wet? Have y
游客
2024-02-23
59
管理
问题
Can you imagine ice that does not melt and is not wet? Have your ever heard of dry ice? Dry ice is made by freezing a gas. It is quite different from ordinary ice which is simply frozen water. Dry ice was first manufactured in 1925. It has since fulfilled the hope of its invent or. It can be used for making artificial fog in the movies. When steam is passed over dry ice, a very dense vapor rises. It can also be used for destroying insects in grain supplies. It is more practical than ordinary ice because it takes up less space and it is 142 degrees colder. Since it turns into steam, instead of melting into water, it is cleaner to use. For these reasons, it is extremely popular and many people prefer it to ordinary ice. Dry ice is so cold that if you touch it with your bare fingers, it will burn you.
选项
A、By passing steam over dry ice.
B、By turning ordinary ice into steam.
C、By heating dry ice.
D、By mixing dry ice with ordinary ice.
答案
A
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3474531.html
相关试题推荐
[originaltext]Foryearsithasbeenpossibletosetupcamerastotakepict
[originaltext]Foryearsithasbeenpossibletosetupcamerastotakepict
[originaltext]Foryearsithasbeenpossibletosetupcamerastotakepict
Whatistheman’sproblem?[originaltext]W:Oh,Steve,you’reearly!I’mhappyyou’
[originaltext]W:Mr.Watson,Iwonderwhetherit’spossibleformetotakeavac
[originaltext]W:Mr.Watson,Iwonderwhetherit’spossibleformetotakeavac
Whatdoesthespeakersayabouttelevisionsignals?[br][originaltext]CAT
Whatdoesthespeakersayabouttelevisionsignals?[br][originaltext]CAT
Whatdoesthespeakersayabouttelevisionsignals?[originaltext]CATVisa
Whydoesthemanneedanoutsideinterest?[originaltext]M:MydoctorsaysInee
随机试题
Theexperienceofforeigncountriesisworthlearningfromandtakingforrefere
PASSAGETHREE[br]Whatdoes"Baedeker"mostprobablymean?Atravelinghandbook.
Thosetwinsaresoalikethatitisnexttoimpossibletodistinguish______.A、w
对不存在活跃市场的投资品种进行基金资产估值,说法正确的是()。 Ⅰ.应釆取在
下列并非常见理财规划工具的是()。A:股票 B:法律 C:保险 D:子女激
A. B.2 C. D.0
经计算液化指数IIE,场地液化等级为严重,正确的抗震措施为()。 A.乙、丙
(2018年真题)中国江苏龙叔公司与意大利图歌公司签订DAT(南京)的合同进口一
设计单位应当就审查合格的施工图设计文件向()作出详细说明。A.建设单位
互感器的主要功能有()。A.使仪表和继电器标准化 B.提高仪表及继电器的绝缘
最新回复
(
0
)