首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Which of the following is true within an atom according to the passage? An electrical cord can be ______.
Which of the following is true within an atom according to the passage? An electrical cord can be ______.
admin
2012-08-10
67
问题
Which of the following is true within an atom according to the passage?
An electrical cord can be ______.
选项
A、rubber inside and copper outside
B、iron inside and copper outside
C、rubber inside and glass outside
D、copper inside and glass outside
答案
D
解析
本题问“一根电线可以……”。根据electrical cord可定位到文章第二段第六句,文中说电线通常由导体和绝缘体共同组成,电流从电线中心的导体通过,包在导体外面的绝缘体防止电流外泄。前文又提到铁、铜、铝等是良导体,橡胶、木头、玻璃等是绝缘体,故可推出[D]“内部是铜外部是玻璃”正确。[A]“内部是橡胶外部是铜”。由文章可知,橡胶是绝缘体,应在外面,铜是导体,应在内部,所以不正确。[B]“内部是铁外部是铜”。由文章可知,铁是导体,在内部是正确的,铜是导体,也应在内部,所以不正确。[C]“内部是橡胶外部是玻璃”。由文章可知,玻璃是绝缘体,在外面是正确的,但橡胶是绝缘体,应在外面,所以不正确。
转载请注明原文地址:https://kaotiyun.com/show/dD57777K
0
大学英语四级
相关试题推荐
Nowtheincomegapisgettingwiderandwider.Insomeprivatelyownedfirms,【B1】______,orforeign-fundedcompanies,an【B2】____
Nowtheincomegapisgettingwiderandwider.Insomeprivatelyownedfirms,【B1】______,orforeign-fundedcompanies,an【B2】____
HowtoMakeaGoodImpressionResearchshowsthatwestarttomakeupourmindsaboutpeoplewithinsevensecondsofmeeting
WithfifteenyearsBritainandothernationsshouldbewellonwiththebuildingofhugeindustrialcomplexesforthe【B1】______o
WithfifteenyearsBritainandothernationsshouldbewellonwiththebuildingofhugeindustrialcomplexesforthe【B1】______o
WithfifteenyearsBritainandothernationsshouldbewellonwiththebuildingofhugeindustrialcomplexesforthe【B1】______o
WithfifteenyearsBritainandothernationsshouldbewellonwiththebuildingofhugeindustrialcomplexesforthe【B1】______o
A、Accordingtotheamountofcollegeexpensestheywillpay.B、Accordingtotheirrecordsinhighschools.C、Accordingtothere
AgriculturalNewsFoodandAgricultureinTwenty-fiveYearsAccordingtotheInternationalFoodPolicyResearchInstitute,t
随机试题
在肝脏声像图中表现为“牛眼征”的,实质性占位性病变是指
欲了解某城市6~12岁儿童的身高发育水平,调查方法可采用
A.大肠杆菌B.拟杆菌C.绿脓杆菌D.溶血性链球菌E.金黄色葡萄球菌何种致病菌感染后脓液稠厚,有粪臭的是
A.异丙肾上腺素B.硝普钠C.硝苯地平D.多巴胺E.肾上腺素尖端扭转型室速
溢饮是指饮邪留于()
下列关于假释的说法,哪些是错误的?
采用最低评标价法评标时,按照经评审的投标价由低到高的顺序推荐中标候选人。经评审的投标价相等时,()的优先。
一条指令必须包括()。
下列哪些情形属于挪用公款归个人使用,从而可能构成挪用公款罪?()
Itwasaholidayweekend.Thepoliceofficersweresittinginahotroom【C1】______in-structions(指示)fromtheircaptain.Oneof
最新回复
(
0
)