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
50
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、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
转载请注明原文地址:http://tihaiku.com/zcyy/3474532.html
相关试题推荐
WhatdotheAmericandoctorssayaboutbabies?[br][originaltext]Somepeop
WhatdotheAmericandoctorssayaboutbabies?[originaltext]Somepeopletho
[originaltext]M:Excuseme,Madam.Youarenotsupposedtobehere.Thisareaisf
[originaltext]M:Excuseme,Madam.Youarenotsupposedtobehere.Thisareaisf
[originaltext]M:Excuseme,Madam.Youarenotsupposedtobehere.Thisareaisf
[originaltext]M:Excuseme,Madam.Youarenotsupposedtobehere.Thisareaisf
[originaltext]M:Excuseme,Madam.Youarenotsupposedtobehere.Thisareaisf
ImaginesendingelectronicmailtoyourfriendintheU.S.ordiscussingyour
ImaginesendingelectronicmailtoyourfriendintheU.S.ordiscussingyour
ImaginesendingelectronicmailtoyourfriendintheU.S.ordiscussingyour
随机试题
IfI______theywereonsaleonline,Iwouldn’thaveboughtthetravelingbagsin
Completethetablebelow.WriteONEWORDAND/ORANUMBERforeachanswer.[img]2
有关风湿性心脏病二尖瓣关闭不全的叙述正确的是()。A.感染性心内膜炎发生较二
设任意项级数,若,且,则对该级数下列哪个结论正确?A.必条件收敛 B.必绝对收
体格测量调查表是用于记录体格测量各项原始数据的专门表格。( )
正常初生小儿的体重、身长约为A.2㎏30㎝ B.2.5㎏40㎝ C.
肺痨患者症见咳嗽无力,气短声低,自汗畏风,舌质转淡,面白颧红其虚损性质是A.阳虚
下列关于总需求的核算正确的是:A、总需求=消费需求+生产需求 B、总需求=消
实物交割要求以()名义进行。A.客户 B.交易所 C.会员 D.交割仓库
甲国居民公司A来源于乙国的所得100万元,甲乙两国的所得税税率分别为20%和15
最新回复
(
0
)