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
What was the dream of the early miners.-
What was the dream of the early miners.-
admin
2011-03-01
17
问题
What was the dream of the early miners.-
Have you ever played the game of five stones?. To play it you can use any small pebbles which may be lying around, but, for one of your stones, you would certainly not use a Diamond worth hundreds of pounds. Yet this is what the son of a South African farmer did in the year 1866. When he picked up what he thought was a stone, he did not know that he had become the first person to find a diamond in South Africa.
A few years later, thousands of miners were at work there. They rushed from all over the world to seek their fortunes. Most of the miners dreamed of finding one of the large stones, perhaps one like the famous Cullinan Diamond, which was found in 1905 and was as big as a man’s fist. This great stone was cut into several small gems, some of which can now be seen amongst the Crown Jewels in the Tower of London.
The modem world, however, has found more important uses for its diamond than the making of jewellery. They have been put to work; for diamond is the hardest mineral foud in our earth. It can cut or polish the hardest steel or grind its way through solid rock. Only a diamond is hard enough to cut another diamond, and it is not the big stones which are needed for the drills, saws and grindingwheels. Only factories now demand the diamond dust which the early miners looked upon as useless.
Yet it is a strange fact that nature makes its hardest mineral from exactly the same sub- stance as one of its softest. This soft mineral is graphite, which is very easily broken up and is used to make the "lead" in your pencil. The name "lead" should not really be used, because graphite consists of nothing but carbon—just the same as a diamond.
选项
A、Diamond.
B、Carbon.
C、Lead.
D、Graphite.
答案
D
解析
本题的关键词为graphite,is used to make the“lead”in your pencil.根据关键句可推断出。可能有学生会选[B],因为graphite consists of carbon.但carbon只是一种元素,而不是一种矿物质或金属。
转载请注明原文地址:https://kaotiyun.com/show/KUkd777K
本试题收录于:
公共英语三级笔试题库公共英语(PETS)分类
0
公共英语三级笔试
公共英语(PETS)
相关试题推荐
【26】【28】
WhyareLondontaxidriversveryefficient?
Wherearethesetwospeakersfromrespectively?
Wheredoestheconversationtakeplace?
Whereisthisconversationprobablytakingplace?
Whereisthisconversationprobablytakingplace?
Despite______,shiftworkcouplesstillhopedtomaintainastablelife.Thebesttitleforthisparagraphis______.
WhenhisplanetoucheddownatMontreal’sinternationalairport,DavidLaRochecollectedhisluggageandheadedfortheairport
Asmileisastrongsignofafriendlyandopenattitudeandawillingnesstocommunicate.Itisapositive,silentsignsentwi
Asmileisastrongsignofafriendlyandopenattitudeandawillingnesstocommunicate.Itisapositive,silentsignsentwi
随机试题
Peterisusedtoasimplewayofliving.Hedoesn’twantto______somuchmoneyonfoodorclothing.
A.梅毒B.淋病C.软下疳D.性病淋巴肉芽肿(LGV)E.非淋菌性尿道炎沙眼衣原体LGV生物变种可导致的疾病为
A.腕横纹上5寸,掌长肌腱与桡侧腕屈肌腱之间B.腕横纹上3寸,掌长肌腱与桡侧腕屈肌腱之间C.腕横纹上2寸,掌长肌腱与桡侧腕屈肌腱之间D.腕横纹上1寸,掌长肌腱与桡侧腕屈肌腱之间E.腕横纹中央,掌长肌腱与桡侧腕屈肌腱之间善于治疗心痛、烦闷、口疮,
人事争议仲裁委员会由哪些人员组成?()
为了满足某市数字城市建设的需要,某市计划生产该地区的1:2000比例尺的数字正射影像图(DOM)和1:2000比例尺数字地形图。已于××××年××月完成了全部测区的航空摄影工作;并完成了区域网外业控制点的布设和测量工作,现阶段的工作是完成全部测区的解析空中
下列关于安全生产保证计划编制的关键点的说法,错误的是()。
下列关于业主对专有部分以外的共有部分权利和义务关系的说法,正确的是()。
初中学生的年龄在12—15岁之间,处于少年期,是个体生理发展的第()个高峰期。
大学生村官创业“扬帆计划”项目评比中,甲得了83分,乙的得分比丙高,丁和丙的得分之和大于甲和乙的得分之和,甲的得分比戊高,此次测试85分以上为优秀,5人之中有2人没有达到优秀。可以推出5人成绩从高到低排序最符合题干论述的是:()
在面向对象的设计中,用来请求对象执行某一处理或回答某些信息的要求称为【】。
最新回复
(
0
)