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
59
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://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
PASSAGETWO[br]Whatdoestheword"cosmopolitan"inthelastparagraphmean?A
[originaltext]M:Hi,Jenny.CouldIborrowsomemoneyuntilpayday?W:Uh,yea
对著作权资产进行评估时,应该关注( )。A.著作权资产面临的风险 B.如何合理
桥梁基桩采用钻探取芯法判断桩身完整性,其混凝土芯样特征为:大部分混凝土芯样胶结完
税负转嫁筹划的特点不包括( )。A.以价格为主要手段 B.不影响财政收入
以下哪项不是市场预期理论的观点()A.利率期限结构完全取决于对未来即期利率的市
一大公司2014年发生如下业务: (1)会计人员分析坏账形成的原因,提出了加强
不可与肥皂等阴离子表面活件剂混合或前后使用的消毒剂是A.过氧化氢 B.戊二醛
Horner综合征的临床表现包括( )。A.病侧上睑下垂 B.病侧眼球下陷
支撑线和压力线的作用是在较长的时间内阻止股价向一个方向继续运动。()
最新回复
(
0
)