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
2024-01-28
38
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:https://tihaiku.com/zcyy/3400731.html
相关试题推荐
Imagineyouwenttoarestaurantwithadate;hadaburger,paidwithacred
Imagineyouwenttoarestaurantwithadate;hadaburger,paidwithacred
Imagineyouwenttoarestaurantwithadate;hadaburger,paidwithacred
[originaltext]Anewstudyfoundthat43percentofboyandgirlparticipant
[originaltext]Peoplewithbiggerbrainstendtoscorehigheronstandardte
[originaltext]Peoplewithbiggerbrainstendtoscorehigheronstandardte
[originaltext]Iliveinasmallvillageinthecountry.MywifeandIrunt
[originaltext]Iliveinasmallvillageinthecountry.MywifeandIrunt
[originaltext]W:Goodafternoon,Mr.Burke.Didyouhaveagoodlunch?M:Yes,
[originaltext]M:Hello.Ineedtotalkwithsomeoneaboutmydriver’slicense.
随机试题
[originaltext](1)Agrowingnumberofyoungcitydwellersarechoosingtogetma
[originaltext]M:Weren’tyougoingtoconfirmyourbookingatthehotel?W:You
工程前期的资料主要包括()。A.工程地质勘察报告 B.建设工程施工许可证 C
设学生关系模型Stu(学号,姓名,性别,学院)的主码是学号,成绩关系模型SC(学
某农药厂违规向外排放毒性超标的工业废水,导致甲村的饮用水被污染而无法饮用。该村村
慢性血管内溶血时下列何项是不正确的A.可有血红蛋白尿 B.血清胆红素增高不是敏
技术创新战略按照行为方式的不同分为不同类型,()强调低风险、低收益、人有我
(2017真题)建筑保温材料内部传热的主要方式是()。A.绝热 B.热传导
A.浸渍法 B.渗漉法 C.煎煮法 D.回流法 E.沙氏或索氏提取法不加
复发性口疮是一种有自限性疾病,通常轻型复发性口疮患者病程为A.1个月 B.一年
最新回复
(
0
)