当前位置:考试网  > 试卷库  > 技能鉴定  > 其他类  > 冶金工业技能鉴定  > 下列关于磁铁矿的磁性特点说法再去的是()。
试题预览

下列关于磁铁矿的磁性特点说法再去的是()。

A、磁铁矿的磁化强度和地磁化系数很大,存在磁饱和现象,且在较低的磁场强度作用下就可达到时饱和
B、磁铁矿的比磁化系数是常数,不随磁化场强的变化而变化
C、磁铁矿存在磁滞现象,当它离开磁场后仍保留一定的剩磁
D、磁铁矿的磁性与其形状和粒度无关
查看答案
收藏
纠错
正确答案:

AC

答案解析:

暂无解析

你可能感兴趣的试题

—Doyoumind__________here?

—________.

Afriendofminewasfondofdrawinghorse.Hedrewthehorsesverywell,buthealwaysbeganthetail.NowitistheWesternruletobeginattheheadofthehorse,thatiswhyIwassurprised.Itstruckmethatitcouldnotreallymakeanydifferencewhethertheartistbeginsattheheadorthetailorthebelly(肚子)orthefootofthehorse,ifhereallyknowshisbusiness.Andmostgreatartistswhoreallyknowtheirbusinessdonotfollowotherpeople’srule.Theymaketheirownrules.Everyoneofthemdoeshisworkinawaypeculiar(奇特的)tohimself;andthepeculiaritymeansonlythathefindsitmoreeasytoworkinthatway.

Nowtheverysamethingistruetoliterature(文学).Andthequestion,"HowshallIbegin?"onlymeansthatyouwanttobeginattheheadinsteadofbeginningatthetailorsomewhereelse.Thatis,youarenotyetexperienced(有经验的)enoughtotrusttoyourownpowers.Whenyoubecomemoreexperiencedyouwill

neveraskthequestion,andIthinkthatyouwilloftenbeginatthetail--thatistosay,youwillwritetheendofthestorybeforeyouhaveeventhoughtofthebeginning.

1.Afriendofthewriter’sdrewthehorses____.

A.verywell

B.inthewayofwesternrule

C.inthewayofhisownrule

D.alloftheabove

2.Thewriterwassurprisedbecause____.

A.theartistbegantodrawattheheadofthehorse

B.theartistbegantodrawatthetailofthehorse

C.theartistmadehisownrule

D.theartistdidnotfollowotherpeople’srule

3.Youarenotyetexperiencedbecause____.

A.youdon’tknowwheretobegin

B.youwanttobeginattheheadinsteadofbeginningatthetail

C.youalwaysaskedquestion

D.youdonottrusttoyourownpowers

4.Whenyoubecomemoreexperiencedyouwill____.

A.neveraskquestion

B.oftenbeginatthetail

C.shouldwritetheendofthestory

D.shouldthinkofthebeginning

5.Thetopicofthepassageis______.

A.Howtodrawahorse

B.Howtowriteastory

C.Howtomakeyourownrules

D.Trusttoyourownpowers

Facedwithrapidinflationand_____internationalandhomemarkets,manyfirmshavedeclaredbankrupt.

Theday____(在那天我第一次遇见他)wasthefirstofMayontheGreatWall.

Yoursister_______tovisityouquiteofen,didn'tshe?

热门试题 更多>
试题分类: 医院三基考试
练习次数:0次
试题分类: 中国近现代史纲要
练习次数:2次
试题分类: 民航职业技能鉴定
练习次数:1次
试题分类: 民航职业技能鉴定
练习次数:1次
试题分类: 园林绿化作业人员
练习次数:5次
试题分类: 民航职业技能鉴定
练习次数:0次
试题分类: 冶金工业技能鉴定
练习次数:0次
试题分类: 医院三基考试
练习次数:0次
试题分类: 园林绿化作业人员
练习次数:0次
试题分类: 组织行为学
练习次数:7次
扫一扫,手机做题