首页
财务会计
医药卫生
金融经济
考公考编
外语考试
学历提升
职称考试
建筑工程
IT考试
其他
登录
职称考试
共用题干 Scientists working on a problem do not know and sometimes can't even g...
共用题干 Scientists working on a problem do not know and sometimes can't even g...
admin
2020-12-24
14
问题
共用题干
Scientists working on a problem do not know and sometimes can't even guess what the final result will be.Late on Friday,8 November,1895,Professor Rontgen,a German physicist,was doing an experiment in his laboratory when he noticed something extraordinary.He had covered an electric bulb with black cardboard,and when he switched on the current he saw little dancing lights on his table.Now the bulb was completely covered;_________(46)?On the table there were some pieces of paper which had been covered with metal salts.It was on this paper that the lights were shining. Professor Rontgen took a piece of this paper and held it at a distance from the lamp.Between it and the lamp he placed a variety of objects,a book,a pack of cards,a piece of wood and a door key. __________(47).He called his wife into the laboratory and asked her to hold her hand between the lamp and a photographic plate._________(48),but she held up her hand for a quarter of an hour, and when the plate was developed there was a picture of the bones of her hand and of the ring on one finger. The mysterious ray could pass through the flesh and not through the bone or the ring.
At a scientific meeting,Professor Rontegen called this new ray "the unknown" the X-ray. _________(49),and soon there were X-ray machines in all the big hospitals.The most obvious use for this discovery was to enable doctors to see exactly how a bone was fractured._________(50).It was found that these rays could be used to destroy cancer cells,just as they destroyed the healthy cells of the doctors who first used the machines.Methods were found later by which ulcers in the stomach could be located,and the lungs could be X-rayed to show if there was any tuberculosis present.
选项
_______(48)
A:The ray penetrated every one of them except the key
B:She was very surprised by this request
C:how then could any ray penetrate
D:It was a great invention
E:Other uses came later
F: Doctors quickly saw how this could be used
答案
B
解析
前一句及该句意为:现在的灯泡被完全覆盖;怎么会有射线穿透呢?
前一句“在纸和灯之间,他放置了各种不同的物体,一本书、一包卡片、一块木头和一把门钥匙”是实验的步骤方法,该句“射线穿透了除钥匙以外的每一件物体”是实验的结果。
该句中this request指代前一句“He called his wife into the laboratory and asked her to hold her hand between the lamp and a photographic plate."
该句的意思是:医生很快知道该如何运用它,不久X光机出现在所有的大医院里。
“其他用途随后出现”是承上启下句。前一句为“The most obvious use for this discovery was to enable doctors to see exactly how a bone was fractured",该句后面细述它的用途。
转载请注明原文地址:https://ti.zuoweng.com/ti/RjEQKKKQ
相关试题推荐
I'mworkingwithaguyfromLondon.()
共用题干 EconomicReforminChinaMoreUSsinologistshaveexpressedconfidencei...
共用题干 EconomicReforminChinaMoreUSsinologistshaveexpressedconfidencei...
共用题干 EconomicReforminChinaMoreUSsinologistshaveexpressedconfidencei...
共用题干 EconomicReforminChinaMoreUSsinologistshaveexpressedconfidencei...
共用题干 EconomicReforminChinaMoreUSsinologistshaveexpressedconfidencei...
共用题干 EconomicReforminChinaMoreUSsinologistshaveexpressedconfidencei...
共用题干 EconomicReforminChinaMoreUSsinologistshaveexpressedconfidencei...
共用题干 TheJoyofLivingAloneMoreandmoreAmericansarelivingalone.Someli...
共用题干 TheJoyofLivingAloneMoreandmoreAmericansarelivingalone.Someli...
随机试题
下列属于商业银行托管业务的是()。 A.委托贷款业务 B.跟单托收 C.企
腮腺导管在面部的体表投影是()
班级授课制具有哪些主要的优缺点
建设项目建设单位资金使用管理的基本原则是()。
a、b、c、d是1-18号元素中的四种元素,a、b元素的阳离子和c、d元素的阴离子都具有相同的电子层结构,且b元素原子的最外层电子数比a元素原子的最外层电...
与传统的“汗水型”经济不同,创新是一种主要依靠人类智慧的创造性劳动。由于投入多、风险大、周期长、见 效慢,创新并非是每个人自觉的行动,它需要强大的动力支...
下列疾病中造血红髓被脂肪替代的是A:巨幼红细胞贫血B:再生障碍性贫血C:溶血性贫血D:感染性贫血E:缺铁性贫血
按照建筑物安全的基本要求,没有环境污染是指( )。A.不会发生室外大气污染B.不会发生室外噪声污染C.不会发生固体废物污染D.建筑材料均不会产生环境污染
对女职工实行“四期”保护是指()A.哺乳期B.青春期C.经期保护D.孕期保护E.产期保护
财政收入政策和财政支出政策的主要任务是()。A.刺激总供给B.刺激总需求C.调节社会总供给和总需求的基本平衡D.保持经济总量的基本平衡