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
67
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、By passing steam over dry ice.
B、By turning ordinary ice into steam.
C、By heating dry ice.
D、By mixing dry ice with ordinary ice.
答案
A
解析
转载请注明原文地址:https://www.tihaiku.com/zcyy/3474531.html
相关试题推荐
[originaltext]Foryearsithasbeenpossibletosetupcamerastotakepict
[originaltext]Foryearsithasbeenpossibletosetupcamerastotakepict
[originaltext]Foryearsithasbeenpossibletosetupcamerastotakepict
Whatistheman’sproblem?[originaltext]W:Oh,Steve,you’reearly!I’mhappyyou’
[originaltext]W:Mr.Watson,Iwonderwhetherit’spossibleformetotakeavac
[originaltext]W:Mr.Watson,Iwonderwhetherit’spossibleformetotakeavac
Whatdoesthespeakersayabouttelevisionsignals?[br][originaltext]CAT
Whatdoesthespeakersayabouttelevisionsignals?[br][originaltext]CAT
Whatdoesthespeakersayabouttelevisionsignals?[originaltext]CATVisa
Whydoesthemanneedanoutsideinterest?[originaltext]M:MydoctorsaysInee
随机试题
I’veneverbeentoLhasa,butthat’sthecity______.A、I’dmostliketovisitB、w
Thefactthattheworld’scitiesaregettingmoreandmorecrowdedisawel
[originaltext]Howdoyougetalongwithyourcolleagues?[/originaltext][origin
Whatdoyoudoondayswhentheairdoesn’tsmel
根据《反不正当竞争法》规定,以下情形属于不正当竞争行为的是()A.搭售商品,将紧
调凹式就位道是指()A.两侧基牙长轴延长线的交角平分线为就位道 B.通过
抗精神病药氯丙嗪的作用机制是A.抑制脑干网状结构上行激活系统B.阻断中脑-边缘系
某公司共有员工160人,其构成的饼图如图2—1所示,则中级管理人员数为()人。
()是各国监督商业银行的主体。 A.税务部门B.中央银行 C.财政部门
在Excel中,对于“删除”和“删除工作表”下面说法正确的是()。A、删除是删除
最新回复
(
0
)