A. uranium B. plutonium C. polonium D. thorium 相关知识点: 试题来源: 解析 C。解析:居里夫人发现了钋(polonium)和镭(radium)两种新元素。A 选项铀(uranium)不是居里夫人发现的新元素;B 选项钚(plutonium)也不是;D 选项钍(thorium)同样不是。所以答案是 C。反馈 收藏 ...
Marie Curie radium and won the Nobel Prize for Physics in 1903.A. foundB. discoveredC. exploredD. invented 答案 句意:玛丽·居里发现了镭,并于1903年获得诺贝尔物理学奖。考查动词。found创建,发现;指找寻找到的东西,强调的是结果;discovered发现;发现那些存在,只是未被发现的东西;explored勘探;invented发明...
Xavier Roque, "Marie Curie and the Radium Industry: a Preliminary Sketch", History and Technology 13 (1997): 267-281; Boudia, Marie Curie et son laboratoire.Roqué, Xavier (1997). Marie Curie and the radium industry: A preliminary sketch, in S. Boudia and X. Roqué (eds.), Science,...
试题来源: 解析 根据"Marie Curie ...radium (镭) many years ago."和首字母可知,此处指居里夫人发现了镭;discover"发现",动词;再根据"many years ago"可知,时态为一般过去时,动词要用过去式。故填:discovered。 居里夫人多年前发现了镭。反馈 收藏 ...
Marie Curie _ radium. A. discovered B. discovers C. will discover D. is discovering 相关知识点: 试题来源: 解析 A。玛丽·居里发现镭是过去的事情,用一般过去时,discovered 正确。B 一般现在时;C 一般将来时;D 现在进行时,均不合适。反馈 收藏 ...
By1902,theCurieshadextractedatenthofagramofpureradiumchloridesaltfromseveraltonsofpitchblende,anincrediblefeatatthetime.到1902年时，居里夫妇从数吨沥青铀矿中萃取出了0.1克纯氯化镭盐，这在当时是一件不可思议的功绩。Laterthatyear,PierreCurieandHenriBecquerelwerenominatedfortheNobelPrizeinphysics,butMariewas...
Marie Curie was a Polish physicist and chemist who lived between 1867-1934. Together with her husband, Pierre, she discovered two new elements (radium and polonium, two radioactive elements that they extracted chemically from pitchblende ore) and studied the x-rays they emitted. She ...
Theymarriedand became Madame and Monsieur Curie! 他们结了婚,成为了居里夫妇。 Hidden away in their laboratory, Marie and Pierrediscoveredtwo incredible things: radium and polonium. 埋头在实验室里不停的工作让玛丽和皮埃尔发现了两个神奇的东西:镭和钋。
句意:居里夫人发现了镭,发明了X光机。本句主语是 Marie curie,谓语部分是 and 连接的动词短语,这两个动词短语形式应一致。根据 invented X-ray machines 一般过去时,可知此句时态也是一般过去时。discover:发现,过去式是 discovered;结合句意和汉语提示可知答案是 discovered。反馈 收藏 ...
Marie Curie discovered radium. Radium is a kind of ___. A. 金属 B. 气体 C. 液体 D. 塑料 相关知识点: 试题来源: 解析 A。Radium(镭)是一种金属,B 选项“气体”是“gas”;C 选项“液体”是“liquid”;D 选项“塑料”是“plastic”。反馈...