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
61
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、In the 1920’ s.
B、In the 1930’ s.
C、In the 1940’ s.
D、In the 1950’ s.
答案
C
解析
转载请注明原文地址:https://www.tihaiku.com/zcyy/3474533.html
相关试题推荐
Whatistheman’sproblem?[br][originaltext]W:Oh,Steve,you’reearly!I’mhapp
Whatistheman’sproblem?[originaltext]W:Oh,Steve,you’reearly!I’mhappyyou’
[originaltext]W:Mr.Watson,Iwonderwhetherit’spossibleformetotakeavac
[originaltext]W:Mr.Watson,Iwonderwhetherit’spossibleformetotakeavac
[originaltext]W:Mr.Watson,Iwonderwhetherit’spossibleformetotakeavac
Whatdoesthespeakersayabouttelevisionsignals?[br][originaltext]CAT
Whatdoesthespeakersayabouttelevisionsignals?[br][originaltext]CAT
Whatdoesthespeakersayabouttelevisionsignals?[originaltext]CATVisa
Wheredoestheconversationmostprobablytakeplace?[br][originaltext]M:Iri
Wheredoestheconversationmostprobablytakeplace?[br][originaltext]M:Iri
随机试题
Whenherealizedhehadbeen______tosignthecontractbyintrigue,hethreatene
【T1】企业家们希望高科技共享自行车行业的繁荣会使他们致富,同时改变中国城市的交通拥堵。(bike-sharingboom)但梦想有时也会破灭。【T2】
Accordingtothefirstparagraph,wecansaythat______.[br]Theimportanceof
[originaltext]Therearemanycomputeruserswhoarewonderingiftheyshoul
[originaltext]M:I’vegottodowellonthisresearchpapertopasshistory.W:
不良反应为便秘的最常见的药物是A.硫糖铝 B.阿托品 C.枸橼酸铋钾 D.
当社会总供给大于总需求时,政府可实施的财政政策措施有( )。 Ⅰ增加财政
为糖尿病患者留尿做尿糖定量检查,采集尿标本的方法是A:留清晨第1次尿 B:随时
从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性: A.如
下列符合碾压式土石坝填筑要求的是()。 A.一级坝中黏性土的压实度不应低于0
最新回复
(
0
)