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
58
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、In the 1920s.
B、In the 1930s.
C、In the 1940s.
D、In the 1950s.
答案
A
解析
细节题。短文中明确提到,1925年首次制造了干冰(Dry ice was firstmanufactured in 1925),可见答案为A)。
转载请注明原文地址:http://tihaiku.com/zcyy/2784465.html
相关试题推荐
[originaltext](19)Chrisisinchargeofpurchasingandmaintainingequipmen
[originaltext](16)WhileGailOpp-Kemp,anAmericanartist,wasgivingaspe
[originaltext]Beethovenprobablybegantogodeafin1797,buthetriedto
[originaltext]Beethovenprobablybegantogodeafin1797,buthetriedto
[originaltext]Televisionnowplayssuchanimportantpartinsomanypeople
[originaltext]Televisionnowplayssuchanimportantpartinsomanypeople
[originaltext](22)CharlieParkerisoneofAmerica’sgreatestjazzmusician
[originaltext](22)CharlieParkerisoneofAmerica’sgreatestjazzmusician
[originaltext]Unlikemostoftheotherholidays,thehistoryofAprilFool’
[originaltext]Unlikemostoftheotherholidays,thehistoryofAprilFool’
随机试题
Biologically,thereisonlyonequalitywhichdistinguishesusfromanimals:
Mostofourfearsareunreasonable,butwefind______.A、itimpossibletoerase
WhatIfYouCouldLearnEverythi
他父母设法使他相信,教书是最适合他的职业。(convince)Hisparentsmanagedtoconvincehimthatteaching
()是企业组织生产和经营活动的依据。A.国家标准 B.行业标准 C.地方标
()组织建设单位、施工单位等共同协商确定工程变更费用及工期变化,会签工程变更单
以下描述不属于“社会行为”特征的是A:由社会环境造就 B:由人的生物性所决定
企业因违约所支付的赔偿金属于其他业务支出。()
患者,女,54岁,肝硬化20年,腹部B型超声检查:腹水最大液深18cm,化验检查
交感神经系统功能活动的意义在于A.促进消化 B.保存能量 C.加速排泄 D
最新回复
(
0
)