首页
登录
职称英语
[audioFiles]2016m4x/audio_ezfj_368_20164[/audioFiles]The Compass指南针 A magne
[audioFiles]2016m4x/audio_ezfj_368_20164[/audioFiles]The Compass指南针 A magne
游客
2024-09-20
0
管理
问题
选项
答案
The Compass指南针
A magnetic compass is a device that has been used for centuries now, / and its utility in helping people find their way is undoubted. / Before technology gave us the privilege of GPS navigation systems, / the act of finding out where you are and which side is north / was carried out simply with the help of a compass. / We’ve all seen a compass at some point or the other, / and this has almost always led us to the question “How does a compass work?” / The answer to this question can be explained / through the concept of the earth’s electromagnetism. / Simply speaking, a compass is basically a small magnet / that has a needle attached on one end. / The other end of the magnet is attached to a freely moving pin. / When the compass is held out steadily, / the magnet becomes parallel with the magnetic field of the Earth, / and this causes it to point north. /
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3765887.html
相关试题推荐
Children’sAggressiveBehaviorandSoftDrinks[audioFiles]2016m3x/audio_ezfj_25
[audioFiles]2016m4x/audio_ezfj_294_20164[/audioFiles]
[audioFiles]2016m4x/audio_ezfj_370_20164[/audioFiles]WaterSports水上运动Theh
[audioFiles]2016m4x/audio_ezfj_369_20164[/audioFiles]BallGames球类运动Ballga
[audioFiles]2016m4x/audio_ezfj_366_20164[/audioFiles]Picnic野餐Assummertime
[audioFiles]2016m4x/audio_ezfj_153_20164[/audioFiles]
[audioFiles]2016m4x/audio_ezfj_019_20164[/audioFiles]
[audioFiles]2016m4x/audio_ezfj_018_20164[/audioFiles]
[audioFiles]2016m4x/audio_ezfj_025_20164[/audioFiles]Na
[audioFiles]2016m4x/audio_ezfj_023_20164[/audioFiles]
随机试题
施工单位应当依法取得相应等级的资质证书.取得资证书后,可随意承揽工程。
某快餐厅主要制作并出售儿童套餐,一般包括主餐(各类比萨)、饮料和玩具,其餐品种类
货币政策的时滞包括的阶段有()。?A.中央银行认识到需要采取货币政策 B.公众
A.中药品种一级保护B.中药品种二级保护C.专利保护D.行政保护E.设立新药监测
对于测绘项目发包单位来说,必须检验承包单位的(),不得把测绘项目发包给没有测绘资
证券组合管理的第二步是()。A:确定证券投资的品种 B:确定证券投资的资金数量
行业分类的依据主要是公司收入或利润的来源比重,目前我国常见的分类标准包括()。
下列行为中,属于侵犯姓名权的行为是:()A.甲的养父母收养甲之后,强迫甲更改姓
合理情绪疗法中咨询师的角色包括( )。A.指导者 B.分析者 C.诊断者
《药品经营许可证管理办法》规定,开办药品经营企业必须具有A.保证所经营药品质量的
最新回复
(
0
)