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
When were the first x-rays discovered?
When were the first x-rays discovered?
admin
2019-05-09
51
问题
When were the first x-rays discovered?
Karl Wilhelm Rontgen(1845 - 1923) astounded people with the first x-rays in 1895: this was followed three years later by the discovery of radium by Pierre and Marie Curie. But who were they? In 1894, Marie and Pierre Curie met while studying in Paris. Their marriage on 25 th July 1895 marked the start of a partnership which was to receive worldwide recognition.
The Curies discovered radium, a radioactive substance , in uranium oxide ore. They developed techniques for extracting it, but first did not fully understand its properties. Pierre Curie used to carry radium around in his waistcoat pocket and could not understand why he was developing a massive sore on his chest. This would have been fatal, but Pierre’ s life was cut short in 1906 when he was knocked down and killed by a horse and cart in the street. From then on, Marie devoted herself to completing the work that they had begun together.
Marie and Pierre Curie were awarded a joint Nobel Prize in 1904, followed up by a second one for Marie in 1911. Their research was crucial in the development of x-rays in surgery. During World War I Marie Curie helped to equip ambulances, which she drove to the front lines, with x-ray equipment. The International Red Cross made her head of its Radiological Service and she held training courses for medical orderlies and doctors in the new techniques.
Despite her success, Marie faced great opposition from male scientists in France and she never received the recognition she deserved. She died in 1934 from leukaemia, due to exposure to high-energy radiation used in her research. Radiation has since been used to treat cancer worldwide.
选项
A、In 1894.
B、In 1895.
C、In 1904.
D、In 1911.
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/G1Cd777K
本试题收录于:
公共英语四级笔试题库公共英语(PETS)分类
0
公共英语四级笔试
公共英语(PETS)
相关试题推荐
Runningafeverwasoncethoughttobetheprerogativeofwarm-bloodedcreatures,whoseinternaltemperaturesareindependentof
ACanadianresearcherhasdiscoveredthatsoundtravels【21】______airmorethanone-halfkilometeranhourslowerthanhadb
Inthe1920sdemandforAmericanfarmproductsfell,asEuropeancountriesbegantorecoverfromWorldWarIandinstitutedaust
AconferenceheldtheotherdaybytheJointUnitfortheStudyofSocialTrendsonthequalityoflifeinLondonandNewYork,
AconferenceheldtheotherdaybytheJointUnitfortheStudyofSocialTrendsonthequalityoflifeinLondonandNewYork,
Mostpeoplewhotravellongdistancescomplainofjetlag(喷气飞行时差反应).Jetlagmakesbusinesstravelerslessproductiveandmorepr
Doanimalshavefights?Thisishowthequestionisusuallyput.Itsoundslikeauseful,ground-clearingwaytostart.Actually
(61)Environmentalistsandactivistsaccusedtheworld’srichnationsofmanagingaglobalconferenceongeneticallymodifiedfoo
Thereisonekindofpainforwhichnobodyhasyetfoundacure--thepainthatcomesfromtheendingofarelationship.Therela
Intheopeningparagraph,theauthorintroduceshistopicby______.Whatdoestheauthorsayaboutconsumereducation?
随机试题
甲企业拥有三幢房产,分别为厂房A、厂房B和一幢办公楼,其中厂房A为与乙企业和丙企业共同共有。2014年有关甲企业房产的事项如下。(1)乙企业准备将厂房A进行内部装修,添置新的附属设施,经查,甲、乙、丙三个企业事先均没有约定处理方式,乙企业与甲企业和丙企业
心电图运动试验的禁忌证是
个人发现药品引起的新的或严重的不良反应,可向
施工总承包管理方施工项目管理的主要特征,对其说法下列正确的是( )。
在Excel中,单击某行的行号可以选择整行。
下列关于企业所得税纳税地点的表述中,说法不正确的是()。
2014年10月10日,甲公司购买乙公司发行的股票30万股确认为长期股权投资,占乙公司有表决权股份的30%,对其具有重大影响,采用权益法核算。每股买入价为5.2元,其中包含0.5元已宣告但尚未分派的现金股利,另支付相关税费O.6万元。取得投资时,乙公司可辨
著名教育家、体育活动家、教育学家、历史学家和现代奥林匹克运动的发起人是()。
下列关于科技常识的表述,不正确的是:
下列关于路由信息协议RIP的描述中,错误的是()。
最新回复
(
0
)