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
2023-06-26
59
管理
问题
Can you imagine ice that does not melt and is not wet? Have you ever heard of dry ice?[22]Dry ice is made by freezing a gas. It is quite different from ordinary ice which is simply frozen water.[25]Dry ice was first manufactured in 1925. It has since fulfilled the hope of its inventor.[23]It can be used for making artificial fog in the movies. When steam is passed over dry ice, a very dense vapour rises. It can also be used for destroying insects in grain supplies.[24]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.
22. What is dry ice made of?
23. How is an artificial fog made in the movies?
24. What is the advantage of dry ice over ordinary ice?
25. When was dry ice first made?
选项
A、It takes a longer time to melt.
B、It is lighter to carry.
C、It is cleaner to use than ordinary ice.
D、It is not so cold as ordinary ice.
答案
C
解析
细节题。短文中提到,干冰比普通的冰更实用(practical),因为干冰省空间且温度更低;干冰直接化为蒸汽,因此使用起来更干净(cleaner touse),C)符合原文,故为答案。
转载请注明原文地址:https://tihaiku.com/zcyy/2784464.html
相关试题推荐
[originaltext](19)Chrisisinchargeofpurchasingandmaintainingequipmen
[originaltext](16)WhileGailOpp-Kemp,anAmericanartist,wasgivingaspe
[originaltext](16)WhileGailOpp-Kemp,anAmericanartist,wasgivingaspe
[originaltext]Beethovenprobablybegantogodeafin1797,buthetriedto
[originaltext]Televisionnowplayssuchanimportantpartinsomanypeople
[originaltext](22)CharlieParkerisoneofAmerica’sgreatestjazzmusician
[originaltext](22)CharlieParkerisoneofAmerica’sgreatestjazzmusician
[originaltext]Unlikemostoftheotherholidays,thehistoryofAprilFool’
[originaltext]Unlikemostoftheotherholidays,thehistoryofAprilFool’
[originaltext]ThespaceshuttleDiscoveryhassafelyreturnedtoearthafte
随机试题
Whatistheweatherperfectfor?[br][originaltext]Goodmorningandwelcom
TheFDAmayrescinditsapprovalofAvastin,acolon-cancerdrug.Ifthe
复位:是为使火灾自动报警系统或系统内各组成部分恢复到正常监视状态进行的操作。
男性,51岁。大量饮酒30余年。1天前出现呕血,并排柏油样便,并出现意识恍惚。查
患者,女性,25岁。因胃、十二指肠溃疡住院治疗。患者入病区因环境陌生有些紧张,护
颅内压增高病人床头抬高15°~30°的主要目的是()。A.有利于改善心脏功能
20世纪末,为应对知识经济的挑战,我国开始特别重视A.培养学生创新精神和实践能力
货币市场基金的投资对象包括()。 A.剩余期限在397天以内(含397
在运用重要性概念时,下列各项中,不属于注册会计师应考虑的内容是()。A.财务报表
住房租赁企业中的增值税一般纳税人向个人出租住房取得的全部出租收入,可以选择适用简
最新回复
(
0
)