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
2023-07-22
64
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://www.tihaiku.com/zcyy/2858267.html
相关试题推荐
[originaltext]JohnLennon,oneoftheBeatles,wasmurderedjustbefore11
[originaltext]JohnLennon,oneoftheBeatles,wasmurderedjustbefore11
[originaltext]M:Hello,UniversityBooks.TimWeberspeaking.W:Hi,Tim,this
[originaltext]M:Hello,UniversityBooks.TimWeberspeaking.W:Hi,Tim,this
[originaltext]M:Hello,UniversityBooks.TimWeberspeaking.W:Hi,Tim,this
[originaltext]W:Didyouvisitthetelevisiontowerwhenyouhadyourvacation
[originaltext]Hi.MynameisJohnHilton.I’myourteachingassistantforC
[originaltext]Hi.MynameisJohnHilton.I’myourteachingassistantforC
[originaltext]M:Ow!Thathurts!W:Whathappened?Didyoucutyourself?M:Y
[originaltext]M:Ow!Thathurts!W:Whathappened?Didyoucutyourself?M:Y
随机试题
UsingLyricstoDevelopStudents’CriticalLiteracySonglyrics
—Where______therecorder?Ican’tseeitanywhere.—"I______itrighthere.B
HowtoCopewithYourSoul-destroyingJobsA)Weallhaveheard—o
土的天然密度是指土在( )下单位体积的质量。A.天然状态 B.绝对体积近似值
当样本容量比较大时,样本比率P近似服从正态分布,且有P的数学期望就是总体比率π,
患者,男性,34岁。测量血压,血压值为132/88mmHg,属于A.理想血压
孕期未达35周出现胎膜早破,最恰当的处理是A.立即引产 B.立即剖宫产 C.
优抚安置社会工作不包括()。A.优抚医院社会工作 B.光荣院社会工作 C.精
根据《水利工程建设项目施工监理规范》,监理单位跟踪检测混凝土试样的数量,应不少于
成人引起肾性高血压最常见的疾病是( )。A.肾动脉狭窄 B.慢性肾盂肾炎
最新回复
(
0
)