首页
登录
职称英语
[img]2016m12s/ct_eyyjscz2015j_eyyjsccloze_0151_201611[/img] Diamond is the h
[img]2016m12s/ct_eyyjscz2015j_eyyjsccloze_0151_201611[/img] Diamond is the h
游客
2023-10-17
27
管理
问题
Diamond is the hardest naturally occurring substance known. It is the most popular gemstone and because of its extreme 【C1】______(hard), it is also used for various industrial purposes. Scientists are still 【C2】______(sure)of the exact process by which diamonds are naturally formed, but it is certain that both extreme heat and enormous pressure are needed. It is, therefore, likely that diamonds were formed far【C3】be______the Earth’s surface where these conditions exist. The first synthetic diamonds were successfully produced in the 1950s, but the best and largest stones are still those created by nature.
The word ’ diamond’ comes from the Greek ’ adamas’ , which means invincible, but the first definite reference to diamonds occurs in Roman literature of the first century A. D. The diamonds known to the Romans came from India, which was the only 【C4】______(supply)of the stones until the eighteenth century. In 1762, diamonds were discovered in Brazil, and then in 1866 in South Africa, the main source of diamonds in the world today.
The idea that men should give diamonds to the women they 【C5】______is quite new. It was invented in the last century by De Beers, the company that owns the South African diamond mines. The idea that ’diamonds are forever’ does not hold water either. Although diamonds are very hard, they can be【C6】dam______.
The largest of all known diamonds was the Cullinan. It was【C7】disc______in South Africa in 1905 and given to Edward VII, king of Great Britain. It was cut into smaller stones, the largest of which—and still the largest cut diamond in 【C8】______(exist)—is called the Star of Africa.
There have been a lot of diamond thefts in recent years, but scientists can now mark stones to show who own them. Usually this mark is 【C9】______(visible), so thieves can’t tell if a diamond is marked. 【C10】O______the people who know how to make the mark appear can tell whether a diamond is marked or not. [br] 【C5】
选项
答案
love
解析
(该句是说“男性应该向他所爱的女性赠送钻石是一个新鲜的主意”,根据目前的现状可知本题答案。)
转载请注明原文地址:https://tihaiku.com/zcyy/3105800.html
相关试题推荐
[img]2016m12s/ct_eyyjsdm_eyyjsdreadb_0064_201612[/img]【B1】______Manyofthe
[img]2016m12s/ct_eyyjsdm_eyyjsdreadb_0064_201612[/img]【B1】______Manyofthe
[img]2016m12s/ct_eyyjsdm_eyyjsdreadb_0064_201612[/img]【B1】______Manyofthe
[img]2016m12s/ct_eyyjsdm_eyyjsdreadd_0076_201612[/img]Certainbirdsare,mo
[img]2016m12s/ct_eyyjsdm_eyyjsdreadd_0076_201612[/img]Certainbirdsare,mo
WaterforLife[img]2016m12s/ct_eyyjsdm_eyyjsdcloze_
WaterforLife[img]2016m12s/ct_eyyjsdm_eyyjsdcloze_
WaterforLife[img]2016m12s/ct_eyyjsdm_eyyjsdcloze_
WaterforLife[img]2016m12s/ct_eyyjsdm_eyyjsdcloze_
WaterforLife[img]2016m12s/ct_eyyjsdm_eyyjsdcloze_
随机试题
HowATMsWork?You’reshortoncash,s
Farmersusuallyuseploughstopreparetheirfieldsforplantingcrops.Plou
AdversityOftenLeadstoProsperityForthispart,youareallowed30minu
HeisthemanageroftheHumanResourcesDepartment______Imusttalkto.A、what
根据《计算机软件保护条例》,关于计算机软件的使用与保护,说法错误的是( )。A
“水滴石穿”“锲而不舍”,这些成语故事启示我们要( )。A.培养自信的品质
下列各项活动中,属于施工职业健康安全管理体系运行工作实施重点的是()A、自我学习
夸美纽斯设计的拉丁语学校是为( )准备的A.0~6岁 B.6~12岁 C.
从给出的几句话中选出有语病的一句:()A:作为一个外国人,她觉得上海很不错
下列有关边缘性颌骨骨髓炎的叙述,错误的是( )。A.急性期多见于青年人,好发于
最新回复
(
0
)